2 years ago

Please answer the question attached, marking brainliest (serious answers only)

Mathematics

2 answers:

Mandarinka [93]2 years ago

8 0

Step-by-step explanation:

By Exterior Angle Theorem,

81° + b = 117°.

=> b = 117° - 81° = 36°.

Elden [556K]2 years ago

5 0

Answer:

b = 36

Step-by-step explanation:

a+117 = 180 ( being straight angle)

a = 180 - 117

a = 63

Now,

81 + 63 + b = 180 ( being sum of interior of triangle)

144 + b= 180

b = 180 - 144

b 36

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