Question

find the value of the unknown in each of the following figures​

Answer 1

Answer:

a+b+c+d= 360

78+62+c+110=360

250+c=360

c=360-250

c=110

Answer 2

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As ABCD is a quadrilateral, sum of all angles is 360°.

So,

⇒ ∠A + ∠B + ∠C + ∠D = 360°

⇒ 78° + 62° + ∠C + 110° = 360°

⇒ 250° + ∠C = 360°

⇒ ∠C = 360° - 250°

⇒ ∠C = 110°

Hope it helps!!!!!

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