Geometry Concepts

Front

Complementary Angles

Back

Two angles whose measures add up to 90 degrees.

Front

Supplementary Angles

Back

Two angles whose measures add up to 180 degrees.

Front

Corresponding Angles

Back

Angles that are in the same position on two parallel lines in relation to a transversal.

Front

Alternate Interior Angles

Back

Angles that are on opposite sides of the transversal and inside the two lines.

Front

Alternate Exterior Angles

Back

Angles that are on opposite sides of the transversal and outside the two lines.

Front

Same Side Interior Angles

Back

Two interior angles on the same side of the transversal.

Front

Isosceles Triangle

Back

A triangle with at least two sides of equal length.

Front

Equilateral Triangle

Back

A triangle with all three sides of equal length.

Front

Triangle Sum Theorem

Back

The sum of the interior angles of a triangle is always 180 degrees.

Front

Exterior Angle of a Triangle

Back

An angle formed by one side of a triangle and the extension of an adjacent side.