PA Vocabulary Angle and Triangle Relationships

Front

Adjacent angles

Back

Two non-overlapping angles that share a common vertex and exactly one ray.

Front

Angle-angle criterion for triangles

Back

If two angles in one triangle are congruent to two angles in another triangle, then the measures of the third angle in both triangles are congruent.

Front

Complementary angles

Back

Two angles whose degree measures have a sum of 90°.

Front

Congruent angles

Back

Angles whose angle measurements are equal.

Front

Degree

Back

The measure of an angle where each degree represents a part of a circle.

Front

Exterior angles of a triangle

Back

Angles that are outside of a triangle between one side of a triangle and the extension of the adjacent side.

Front

Hypotenuse

Back

The longest side of a right triangle, the side opposite the right angle.

Front

Interior angles of a triangle

Back

Angles that are inside of a triangle, formed by two sides of the triangle.

Front

Intersecting lines

Back

Lines that meet or cross at a point.

Front

Legs of a right triangle

Back

The two shortest sides of a right triangle.