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Let's do this question, Incyte, w e e r w e is a 70 degree angle, RW is an 80 degree angle.

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All right.

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The remaining two angles.

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All right.

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So over here, w r is equal to R.E..

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It's a quite similarly w E is equal to it.

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Now over here directly, if you remember the properties of a triangle, you can see that angle w has

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to be equal to handle it.

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Right.

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70 plus 80 plus two X is equal to 360 and you can just solve for X.

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That's the very quick way to do it.

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Now to solidify our fundamentals, let's see why these two angles are equal.

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Let's mark this as angle one, two, three and four.

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Right now, angle one is equal to angle two because W R is equal to R, so WRGA is an isosceles triangle.

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These two sides are equal.

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Therefore, angle one also is equal to angle two.

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Now W is equal to easier for these two sides are equal.

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Therefore angle three is equal to angle four.

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Right now, angle W is formed by one plus three.

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If you add one plus three that's equal to two plus four.

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Right.

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Therefore angle W is equal to angle it.

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Now you don't need to do this like this in the exam because you remember the properties of a kind that

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these two angles are equal.

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Right.

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These two angles are formed by non equal sides.

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W.R is not equal to W.T. Similarly are is not equal.

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Therefore these two angles will be equal.

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Right.

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All right.

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Now, let's proceed.

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We know that 70 plus 80 plus two X is equal to 360 and hence X is equal to 210, divided by two or one

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hundred and five degrees.

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Therefore, Angle W. is one zero five degree and angle is equal to one zero five degrees.