Question

In the given figure bc is parallel to de find x,i.e the reflex angle ade

Answer 1

Here is the solution

Answer 2

1.) Join CE at right angles.

After joining it , the figure ABCED becomes a pentagon .

We know that the sum of interior angles of a pentagon is 540°.

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Hence :-

    112 + 15 + x + 90 + 90 = 540

⇒ 307 + x = 540

⇒ x = 540-307

⇒   x = 233°

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