Mathematics, 08.04.2020 22:47, moonlightparis9015

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

What is...