Question

15.In figure, a = 40 0 , then the value of b is ________ a) 20 deg b) 24 deg c) 36 deg d)1200 deg
please answer these question

Answer 1

Answer:

20°

Step-by-step explanation:

value of a = 40°

Value of 2a = 80°

value of 5b = 180- 80(linear angle )

5b = 100°

b = 100/5

Therefore, b = 20°

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