Chapter 1 Vocabulary Test

The common endpoint of an angle.

• vertex of an angle

• ray

• adjacent angles

• midpoint

A convex polygon in which all of the sides are congruent and all of the angles are congruent.

• regular polygon

• perimeter

• perpendicular

• n-gon

Lines that form right angles.

• perpendicular

• parallel

• line segment

• congruent segment

Two angles that lie in the same plane, have a common vertex and a common side, but no common interior points.

• adjacent angles

• concave

• circumference

• area

Two nonadjacent angles formed by two intersecting lines.

• vertical lines

• line segments

• parallel

• polygon

Two angles with measures that have a sum of 180.

• supplementary angles

• complementary angles

• distance

• vertical angles

Two angles with measures that have a sum of 90.

• complementary angles

• supplementary angles

• distance

• vertical angles

Points that lie in the same plane.

• coplanar

• collinear

• plane

• ray

The distance around a circle.

• circumference

• perimeter

• area

• distance

A unit of measure used in measuring angles.

• degree

• area

• perimeter

• line