11 terms

Becky_Mathews9TEACHER

Adjacent Angles

Angles that have the same vertex, share a common side, and do not overlap

Circumference

The Distance around a circle

Complementary Angles

Two angles are ______________ if the sum of their measures is 90 degrees.

Congruent

Having the same measure

Cross Section

A ______ _______ is the shape we get when cutting straight through an object.

Irregular Polygon

A polygon that does not have all sides equal and all angles equal.

Parallel Lines

Lines in a plane that never intersect

Pi

The ratio of the circumference of a circle to its diameter.

Regular Polygon

A polygon is a ________ __________ only when all angles are equal and all sides are equal, otherwise it is irregular.

Supplementary Angles

Two angles are ___________ if the sum of their measures is 180 degrees.

Vertical Angles

Opposite angles formed by the intersection of two lines. These angles are congruent.