Question

In the triangle, ∠1 = 42° and ∠4 = 81°. What is ∠2?

Answer 1

180-42-81= 57
Angle two is 57 degrees

Answer 2

Question:-

what's m∠2?

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Answer:-

• ∠1 =42°

• ∠4=81

• ∠3=180-81=99

• ∠2=180-(99+42)

• ∠2=180-141=

• 39°

so, m∠2= 39°

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