Geometry Chapter 1 Flashcards

Front

Angle

Back

A figure formed by two rays, called the sides of the angle, sharing a common endpoint, called the vertex.

Front

Vertex

Back

The point where two or more lines meet.

Front

Complementary

Back

Two angles that add up to 90 degrees.

Front

Supplementary

Back

Two angles that add up to 180 degrees.

Front

Linear Pair

Back

A pair of adjacent angles that are supplementary.

Front

Diameter

Back

A straight line passing from side to side through the center of a circle.

Front

Radius

Back

A straight line from the center to the circumference of a circle.

Front

Arc

Back

A part of the circumference of a circle.

Front

Equilateral

Back

A triangle with all three sides of equal length.

Front

Equiangular

Back

A triangle with all three angles equal.