Triangle Measures

Vocabulary

Acute Angle-is an angle smaller than a right angle it is less than 90 degrees.
Congruent Angle- Two angles are congruent if they have the same measure.
Complementary Angle- either of two angles whose sum is 90°
Obtuse Angle- An angle that measures more than 90 degrees but less than 180 degrees.
Right Angle- an angle of 90°

The Measurement of Triangles : Geometry, Algebra & More