Question

Quadrilateral : in a quadrilateral abcd, a=150 degree and b = c=d,find b,c and

Answer 1

in a quad. sum of interior angles = 360
A + B + C + D = 360
150° + 3∠B = 360°
3∠B = 210°
∠B = 70°

∠B = ∠C = ∠D = 70°

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Answer 2

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