Geometry Calculators: (45) lessons

[+] 3-dimensional points
Calculates distance between two 3-dimensional points
(x1, y1, z1) and (x2, y2, z2) as well as the parametric equations and symmetric equations

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Examples (4): (1,2,3)(4,5,6), distance between (2,4,6)(3,5,7), (-1,2,-3)and(4,6,8), distance between (3,4,5),(5,6,7)Tags: distance, parametric equations, point, symmetric equations
[+] Angle Ratio for a Triangle
Given an angle ratio for a triangle of a:b:c, this determines the angle measurements of the triangle.

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Examples (1): A triangle has an angle ratio of 3:5:7. What are the anglesTags: angle, ratio, triangle
[+] Annulus
Calculates the area of an annulus and the equation of the annulus using the radius of the large and small concentric circles.

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Examples (1): An annulus has an outer radius of 12 and an inner radius of 5Tags: annulus, radius
[+] Bretschneiders Formula
Calculates the area of a quadrilateral using Bretschneiders Formula

Features: Calculator | Quiz Generator | Practice Problem Generator
[+] Cevian Triangle Relations
Given a triangle with a cevian, this will solve for the cevian or segments or sides based on inputs

Features: CalculatorTags: cevian, segment, side
[+] Chord
Solves for any of the 3 items in the Chord of a Circle equation, Chord Length (c), Radius (r), and center to chord midpoint (t).

Features: Calculator | Practice Problem GeneratorTags: chord, circle, radius
[+] Circles
Calculates and solves for Radius, Diameter, Circumference, and Area of a Circle.

Features: Calculator | Quiz Generator | Practice Problem Generator | Watch the Video

Examples (76): Circle radius = 2, Circle diameter = 2, Circle area = 2, Circle circumference = 2, Circle radius = 3, Circle diameter = 3, Circle area = 3, Circle circumference = 3, Circle radius = 4, Circle diameter = 4, Circle area = 4, Circle circumference = 4, Circle radius = 5, Circle diameter = 5, Circle area = 5, Circle circumference = 5, Circle radius = 6, Circle diameter = 6, Circle area = 6, Circle circumference = 6, Circle radius = 7, Circle diameter = 7, Circle area = 7, Circle circumference = 7, Circle radius = 8, Circle diameter = 8, Circle area = 8, Circle circumference = 8, Circle radius = 9, Circle diameter = 9, Circle area = 9, Circle circumference = 9, Circle radius = 10, Circle diameter = 10, Circle area = 10, Circle circumference = 10, Circle radius = 11, Circle diameter = 11, Circle area = 11, Circle circumference = 11, Circle radius = 12, Circle diameter = 12, Circle area = 12, Circle circumference = 12, Circle radius = 13, Circle diameter = 13, Circle area = 13, Circle circumference = 13, Circle radius = 14, Circle diameter = 14, Circle area = 14, Circle circumference = 14, Circle radius = 15, Circle diameter = 15, Circle area = 15, Circle circumference = 15, Circle radius = 16, Circle diameter = 16, Circle area = 16, Circle circumference = 16, Circle radius = 17, Circle diameter = 17, Circle area = 17, Circle circumference = 17, Circle radius = 18, Circle diameter = 18, Circle area = 18, Circle circumference = 18, Circle radius = 19, Circle diameter = 19, Circle area = 19, Circle circumference = 19, Circle radius = 20, Circle diameter = 20, Circle area = 20, Circle circumference = 20Tags: area, circle, circumference, diameter, radius
[+] Clock Angle
Calculate the angle on a clock between the hour and minute hands or how many times on the clock form an angle of (x°) between the minute and hour hand (backwards and forwards)

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Examples (2): Clock angle between 2:40, Clock Time with angle of 84Tags: angle, clock
[+] Clock Hands Meet
Calculates the first time on a clock when the hands will meet or touch again.

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Examples (1): clock hands meet at 4:52
[+] Cones
Calculates and solves for Radius, height, Volume (Capacity), Lateral Area, and Surface Area of a Cone.

Features: CalculatorTags: capacity, lateral area, surface area, volume
[+] Cost Function
Creates a cost function from cost word problems

Features: Calculator | Practice Problem Generator

Examples (1): The cost of x textbooks if one textbook costs $140Tags: cost, function
[+] Cube
Solves for Volume (Capacity), Lateral Area,Surface Area, and the value of a side for a cube.

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Examples (76): Cube volume = 2, Cube surface area = 2, Cube side = 2, Cube lateral area = 2, Cube volume = 3, Cube surface area = 3, Cube side = 3, Cube lateral area = 3, Cube volume = 4, Cube surface area = 4, Cube side = 4, Cube lateral area = 4, Cube volume = 5, Cube surface area = 5, Cube side = 5, Cube lateral area = 5, Cube volume = 6, Cube surface area = 6, Cube side = 6, Cube lateral area = 6, Cube volume = 7, Cube surface area = 7, Cube side = 7, Cube lateral area = 7, Cube volume = 8, Cube surface area = 8, Cube side = 8, Cube lateral area = 8, Cube volume = 9, Cube surface area = 9, Cube side = 9, Cube lateral area = 9, Cube volume = 10, Cube surface area = 10, Cube side = 10, Cube lateral area = 10, Cube volume = 11, Cube surface area = 11, Cube side = 11, Cube lateral area = 11, Cube volume = 12, Cube surface area = 12, Cube side = 12, Cube lateral area = 12, Cube volume = 13, Cube surface area = 13, Cube side = 13, Cube lateral area = 13, Cube volume = 14, Cube surface area = 14, Cube side = 14, Cube lateral area = 14, Cube volume = 15, Cube surface area = 15, Cube side = 15, Cube lateral area = 15, Cube volume = 16, Cube surface area = 16, Cube side = 16, Cube lateral area = 16, Cube volume = 17, Cube surface area = 17, Cube side = 17, Cube lateral area = 17, Cube volume = 18, Cube surface area = 18, Cube side = 18, Cube lateral area = 18, Cube volume = 19, Cube surface area = 19, Cube side = 19, Cube lateral area = 19, Cube volume = 20, Cube surface area = 20, Cube side = 20, Cube lateral area = 20Tags: capacity, cube, lateral area, surface area, volume
[+] Cuboid
Calculates the volume, surface area, diagonals, and space diagonal for a cuboid

Features: Calculator | Practice Problem Generator
[+] Cylinders
Calculates and solves for Radius, Diameter, Volume (Capacity), Lateral Area, and Surface Area of a Cylinder.

Features: Calculator | Quiz Generator | Practice Problem GeneratorTags: capacity, cylinder, diameter, lateral area, radius, surface area, volume
[+] Decagon
[+] Equilateral Triangle
[+] Eulers Formula for Planar Geometry
This calculator solves for any one of the 3 following items using Eulers Formula for planar geometry:
* Vertices (v)
* Faces (f)
* Edges (e)


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Examples (3): 5 vertices and 4 faces, 6 faces,12 edges, e=20,v=12Tags: Euler, shape, vertices
[+] Geometric Mean of a Triangle
Given certain segments of a special right triangle, this will calculate other segments using the geometric mean

Features: Calculator | Watch the VideoTags: geometric mean, segment, triangle
[+] Golden Ratio
Solves for 2 out of the 3 variables for a segment broken in 2 pieces that satisfies the Golden Ratio (Golden Mean).
(a) Large Segment
(b) Small Segment
(a + b) Total Segment

Features: Calculator | Quiz Generator | Practice Problem Generator | Watch the VideoTags: ratio, segment
[+] Heptagon
[+] Hexagon
[+] Isosceles Triangle
Given a long side (a) and a short side (b), this determines the following items of the isosceles triangle:
* Area (A)
* Semi-Perimeter (s)
* Altitude a (ha)
* Altitude b (hb)
* Altitude c (hc)


Features: Calculator | Quiz Generator | Practice Problem Generator | Watch the VideoTags: area, perimeter, triangle
[+] Kites
This calculates perimeter and/or area of a kite given certain inputs such as short and long side, short and long diagonal, or angle between short and long side

Features: CalculatorTags: area, kite, perimeter
[+] Nonagon
[+] Octagon
[+] Pentagons
Given a side length and an apothem, this calculates the perimeter and area of the pentagon.

Features: Calculator | Quiz Generator | Practice Problem Generator | Watch the VideoTags: apothem, pentagon
[+] Plane Geometry Operations
Lists detail and simplifies various plane geometry operations and notations

Features: Calculator | Practice Problem GeneratorTags: angle, geometry, line, ray
[+] Plane Geometry Operations
Evaluates and simplifies various plane geometry notation and operations

Features: Calculator | Practice Problem Generator

Examples (1): Tags: angle, plane, ray
[+] Polygon Side
Determines the sides of a polygon given an interior angle sum.

Features: Calculator | Practice Problem Generator

Examples (1): Sum of interior angle is 540.Find the number of sidesTags: polygon, side
[+] Polygons
Using various input scenarios of a polygon such as side length, number of sides, apothem, and radius, this calculator determines Perimeter or a polygon and Area of the polygon. This also determines interior angles of a polygon and diagonals of a polygon as well as the total number of 1 vertex diagonals.

Features: Calculator

Examples (3): diagonals for polygon with 10 sides, interior angle with 7 sided polygon, vertex for polygon with 5 sidesTags: apothem, area, diagonal, perimeter, polygon, radius
[+] Pyramids
Solves for Volume (Capacity), Surface Area, height, or radius of a Pyramid.

Features: Calculator | Quiz Generator | Practice Problem GeneratorTags: capacity, height, pyramid, radius, surface area, volume
[+] Quadrilateral
Given 4 points entered, this determines the area using Brahmaguptas Formula and perimeter of the quadrilateral formed by the points as well as checking to see if the quadrilateral (quadrangle) is a parallelogram.

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Examples (1): (0,0),(5,10),(10,15),(5,5)Tags: parallelogram, perimeter, quadrilateral
[+] Rectangles and Parallelograms
Solve for Area, Perimeter, length, and width of a rectangle or parallelogram and also calculates the diagonal length as well as the circumradius and inradius.

Features: Calculator | Quiz Generator | Practice Problem Generator | Watch the VideoTags: area, circumradius, inradius, length, parallelogram, perimeter, rectangle, width
[+] Rectangular Solid
Solves for Volume (Capacity) of rectangular solid
Lateral Area of rectangular Solid
Surface Area of rectangular solid.

Features: Calculator | Quiz Generator | Practice Problem Generator | Watch the VideoTags: capacity, lateral area, rectangle, surface area, volume
[+] Rhombus
Given inputs of a rhombus, this calculates the following:
Perimeter of a Rhombus
Area of a Rhombus
Side of a Rhombus

Features: Calculator | Watch the VideoTags: area, perimeter, rhombus
[+] Right Triangles
This solves for all the pieces of a right triangle based on given inputs using items like the sin ratio, cosine ratio, tangent ratio, and the Pythagorean Theorem as well as the inradius.

Features: CalculatorTags: cos, inradius, pythagorean theorem, ratio, sin, tangent, triangle
[+] Special Triangles: Isosceles and 30-60-90
Given an Isosceles triangle (45-45-90) or 30-60-90 right triangle, the calculator will solve the 2 remaining sides of the triangle given one side entered.

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Examples (1): The hypotenuse of a 30-60-90 triangle is 16, calculate the small side.Tags: right triangle, triangle
[+] Spheres
Calculates and solves for Volume (Capacity), Surface Area, and Radius of a Sphere.

Features: Calculator | Quiz Generator | Practice Problem Generator

Examples (4): sphere radius = 3, sphere diameter equal to 10, sphere volume is 6, sphere surface area = 10Tags: capacity, radius, sphere, surface area, volume
[+] Squares
Solve for Area of a square, Perimeter of a square, side of a square, diagonal of a square.

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Examples (4): square side = 3, square perimeter equal to 10, square area is 6, square diagonal = 5Tags: area, diagonal, perimeter, square
[+] Tetrahedron Marble Problem
Word problem using marbles in a cylinder jar that forms a tetrahedron.

Features: CalculatorTags: cylinder, tetrahedron, volume
[+] Torus
Calculates the volume of a torus and surface area of a torus given major radius and minor radius.

Features: Calculator | Quiz Generator

Examples (0):
[+] Trapezoids
This calculator determines the following items for a trapezoid based on given inputs:
* Area of trapezoid
* Perimeter of a Trapezoid

Features: Calculator | Practice Problem GeneratorTags: area, perimeter, trapezoid
[+] Triangle Coordinate Items
Enter 3 points for the vertices of a triangle, and this will calculate the area of that triangle and the centroid.

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Examples (2): (1,1),(2,3),(4,5), (2,2)(3,4)(8,9)Tags: area, centroid, triangle, vertices
[+] Triangle Inequality
This calculator displays 2 scenarios
1) Enter 3 sides of a triangle, and it will determine if the side lengths satisfy the properties of the triangle inequality and form a triangle
2) Enter 2 sides of a triangle, and this will determine an acceptable range for the length of the 3rd side of a triangle so that the 3rd side respects the Triangle Inequality.

Features: Calculator | Quiz Generator | Practice Problem Generator | Watch the VideoTags: inequality, triangle
[+] Unit Circle
Determines if coordinates for a unit circle are valid, or calculates a variable for unit circle coordinates

Features: Calculator | Practice Problem Generator

Examples (3): unit circle (2,3), unit circle(x,4), unit circle (3,y)Tags: area, circle