Question

A and B are complementary and B and C are supplementary.

9. If mA 48", then mB= ? and mC = ?.

10. If mB 83, then mA = ? and mC = 2.

11. If mC 127, then m28= ? and mA = ?.

12. If mA = 25. than mB= ? and mC = ?.

Answer 1

Solution :

9. if mA = 48° , then

• mB = 90° - 48° = 42°
• mC = 180° - 42° = 138°

10. if mB = 83°, then

• mA = 90° - 83° = 7°
• mC = 180° - 83° = 97°

11. if mC = 127°, then

• mB = 180° - 127° = 53°
• mA = 90° - 53° = 37°

12. if mA = 25°, then

• mB = 90° - 25° = 65°
• mC = 180° - 65° = 115°