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I do t know how to do it

I do t know how to do it-example-1
User KAnGeL
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1 Answer

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We know: the sum of the angles measures in a triangle is 180°.

Therefore we have the equation:

64° + 75° + α = 180°

139° + α = 180° subtract 139° from both sides

α = 41°

α and ∠2 are Supplementary Angles - they add up to 180°.

α + m∠2 = 180°

41° + m∠2 = 180° subtract 41° from both sides

m∠2 = 139°

I do t know how to do it-example-1
User CrazyNooB
by
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