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3 years ago

SOMEONE PLEASE HELP ME!!!!! Choices: A: 35 B: 135 C: 45 D:55

Mathematics

2 answers:

Sedbober [7]3 years ago

8 0

The answer is 45, if you solve

Darina [25.2K]3 years ago

4 0

The exterior angles of any polygon add to 360 degrees.

If we call the interior angles A,B,C,D,E that means

(180-A) + (180-B) + (180-C) + (180-D) + (180-E) = 360

5(180)-360 = A+B+C+D+E

A+B+C+D+E = 540 degrees

So we know the indicated interior angles add to 540.

90 + 148 + 3x + x+10 + 112 = 540

4x + 360 = 540

4x = 180

x = 45

Answer: Choice C: 45

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