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24 April, 08:53

Trisha's desktop is a quadrilateral. Three of the angles are 77°, 80°, and 85°.

What is the measure of the fourth angle?

A.

58°

B.

158°

C.

118°

D.

258°

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Answers (1)
  1. 24 April, 09:53
    0
    c) 118 degrees

    Step-by-step explanation:

    First you add up all the angles which is 242 and then you subtract 360-242 to get an answer of 118.
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