Question

15

Find the missing angle.
200
180
А A
100
B) 50
C 80
D) 70°

Answer 1

Explanation:

=> x + 80 + 20 = 180

=> x + 100 = 180

=> x = 180 - 100

=> x = 80°

Answer 2

C. 80

Explanation:

Triangle= 180

80 + 20 + x =180

x = 80