Question

In a quadrilateral ABCD, ∠D is equal to 150° and ∠A = ∠B = ∠C. Find ∠A, ∠B and ∠C.

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Answer 1

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$\huge\tt{GIVEN:}$

• In a quadrilateral ABCD, D is equal to 150° and A= B = C

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$\huge\tt{TO~FIND:}$

• A=B=C=X

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$\huge\tt{SOLUTION:}$

By angle sum property of quadrilateral we know,

➩ ∠A + ∠B + ∠C + ∠D = 360°

➩x + x +x+∠D = 360°

➩3x+∠D = 360°

➩3x = 360° – ∠D = 360° – 150°

➩3x = 210°

➩x = 70°

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Hence, ∠A = ∠B = ∠C = 70°

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Answer 2

Answer:

The answer is 70 degree