Special Triangles: Isosceles and 30-60-90 Calculator

Enter 1 out of 3 to solve for the other 2 missing sides:
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A 45-45-90 isosceles right triangle has a side 1 length of 20. Calculate side 2 and Hypotenuse:

The relationship between the sides opposite the 45-45-90 angles in a right triangle are:
2/2,√2/2,1

Calculate Side 2:
Side 2 = Side 1
Side 2 = 20

Calculate Hypotenuse:
Hypotenuse = Square Root(Side 12 + Side 22)
Hypotenuse = Square Root(202 + 202)
Hypotenuse = √400 + 400
Hypotenuse = √800
Hypotenuse = 28.2843

Therefore, our isosceles 45-45-90 triangle sides are 20, 20, 28.2843