1.

In a quadrilateral ABCD, ∠A=90∘, ∠B=3x, ∠C=3x+5, ∠D=8x−15. Then, the value of ∠D is

Answer»

In a quadrilateral ABCD, A=90, B=3x, C=3x+5, D=8x15.
Then, the value of D is




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