Question

In a quadrilateral Δ A= Δ B = 80° , Δ D = 100° find Δ C.
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Answer 1

Answer:

please mark me as vainly

Answer 2

Answer:

C=100°

Explanation:

let angle C be x

angle sum property of quadrilateral is equal to 360°

therefore 80 + 80 + 100+ x =360°

160°+100°+x=360°

260°+x=360°

x=360°-260°

x=100°

so angle C=100°

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