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Analyze the diagram below and complete the instructions that follow.

/

In pentagon ABCDE, /, /, /, and /. Find /.

A.
160º
B.
169º
C.
170º
D.
530º

User Ricksmt
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1 Answer

5 votes

Answer:

The total interior angle of a polygon can be solved by (n-2)*180, where n is the number of sides of the said polygon. In a pentagon, n = 5, so (5-2)*180 = 540°. We now equate the sum of angles a, b, c, d and e to 540. We now have 540 = 87 + 125 + 63 + d + 95. Solving for d will give us a value of 170°. Therefore, the correct answer is (C).

I Could be wrong, forgive me if im wrong.

Explanation:

User Stefan Manastirliu
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