Question

In a quadrilateral, ∠A = ∠B = 38° and ∠D = 110°, find ∠C.​

Answer 1

In a quadrilateral, ∠A = ∠B = 38° and ∠D = 110°, find ∠C.

Theorem: The sum of all the four angles of a quadrilateral is 360°

$38 + 38 + 110 = 186 \\ 360 - 186 \\ = 174 \: ans$

Answer 2

• ∠A +∠B+ ∠C+∠D = 360°
• 38+38+110+ c= 360°
• c = 360-186°
• c = 174°

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