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What is m∠B? (view attached file)

What is m∠B? (view attached file)-example-1
User Goe
by
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1 Answer

8 votes

Answer:

m∠B = 141°

Explanation:

sides of polygon (n) = 7

sum of angles of polygon = {(n - 2) * 180°}

= {(7 -2)*180°}

= 5* 180°

= 900°

Now,

m∠B = 900° - 148° - 142° - 130° - 129° - 120° - 90°

m∠B = 141°

User Ciscoheat
by
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