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obtuse angle

angle measuring greater than 90 degreesoctagon

An eight (8) sided polygonoctal

P = 8s

base 8 number systemodd numbers

Numbers not divisible by 2odds

The ratio of a payoff to a stakeodds probability

Probability of odds paying offodds ratio

odious numbers

A number with an odd number of 1s in the binary expansionohms law

open interval

Interval with no endpointsopen sentences

(a,b)

A math statement, either true or false, based on values supplied for a variableoperation

A math processopposite numbers

A number on the other side of the number line, with the same distance from zerooption delta

order of a matrix

order of magnitude

order of operations

ordered pair

A pair of numbers signifying the location of a pointordered partitions

(x, y)

ordered triple

Three numbers signifying the location of a point in 3-D spaceordering fractions

(x, y, z)

Sorting a fraction set ascending or descendingordering numbers

Sorting a number set ascending or descendingordinate

Absolute value of the y-coordinate, or perpendicular distance to the x-axis. For the cartesian coordinates (x, y), the abscissa is |y|.origin

On a two digit coordinate plane, the point (0, 0), where the x-axis and y-axis cross.orthocenter

The point where the three altitudes of a triangle intersectorthogonal

Two perpendicular lines - two lines forming a 90 degree angleother

ounce

A unit of measurement for liquids/solidsouter fence

start with the IQR and multiply this number by 3. We then subtract this number from the first quartile and add it to the third quartile. These two numbers are our outer fences.