Sketch each angle below on your paper, and label each one with its measure in degrees. Homework Help ✎
Identify whether each angle is an acute, obtuse, or right angle.
Which angles could form a complementary pair?
Which angles could form a supplementary pair?
1) Right angles are 90°.
2) Acute angles are less than 90°.
3) Obtuse angles are greater than 90°, and less than 180°.
Complementary angles add to 90°.
40° + 50° = 90°. Thus, 40° and 50° are a complementary pair.
Supplementary angles add to 180°.