Question

If the measure of angle 2 is (5x+14)and angle 3 is (7x- 14)", what is the measure of angle 1 in degrees?

X
112
413
088°
899
O 90°
910

Answer 1

m∡1 = 91°

Explanation:

5x+14+7x-14 = 180

12x = 180

x = 15

m∡2 = 5(15)+14 = 89

m∡1 = 180 - 89 or 91°