9.3 COMPLEMENTARY AND SUPPLEMENTARY ANGLES

1 COMPLEMEN TA RY A N D S U PPLEMEN TA RY A N GLES Co mpl e me ntary A ng l e s two ANGLES in which the sum of the measures is 90 degrees. S uppl e me ntary A ng l e s two ANGLES in which the sum of the measures is 180 degrees. COMPLEMENTARY ANGLES SUPPLEMENTARY ANGLES Cl as s N o te s - a) State what type of ANGLES are illustrated in the diagram. b) Find the value of x in each figure. LP#1 LP# 2 1 2 1 2 LP# 3 Cl as s N o te s Solve each problem . Re v i e w - a) State what type of ANGLES are illustrated in the diagram. b) Find the value of x in each figure. R# 1 R# 2 R# 3 HOMEWORK COMPLEMENTARY HW - Find the missing measurement in the pair of ANGLES . SUPPLEMENTARY HW - Find the missing measurement in the pair of ANGLES .

2 9) 10) WORD PROB LEMS - S o l v e the f o l l o w i ng . 1. 2. 3. 4. The me as ure s o f ang l e s A and B are s uppl e me ntary . What i s the me as ure o f e ac h ang l e ? 5. An angle is five times its supplement. Find both ANGLES . 6. An angle is 74 degrees more than its complement. Find both ANGLES . 7. The supplement of an angle exceeds the angle by 60 degrees. Find both ANGLES . 8. Find the number of degrees in an angle which is 42 less than its complement. 9. Find the number of degrees in an angle which is 120 less than its supplement. 10. The complement of an angle is 30 less than twice the angle. Find the larger angle.