Let's do this question, Incyte, w e e r w e is a 70 degree angle, RW is an 80 degree angle.
All right.
The remaining two angles.
All right.
So over here, w r is equal to R.E..
It's a quite similarly w E is equal to it.
Now over here directly, if you remember the properties of a triangle, you can see that angle w has
to be equal to handle it.
Right.
70 plus 80 plus two X is equal to 360 and you can just solve for X.
That's the very quick way to do it.
Now to solidify our fundamentals, let's see why these two angles are equal.
Let's mark this as angle one, two, three and four.
Right now, angle one is equal to angle two because W R is equal to R, so WRGA is an isosceles triangle.
These two sides are equal.
Therefore, angle one also is equal to angle two.
Now W is equal to easier for these two sides are equal.
Therefore angle three is equal to angle four.
Right now, angle W is formed by one plus three.
If you add one plus three that's equal to two plus four.
Right.
Therefore angle W is equal to angle it.
Now you don't need to do this like this in the exam because you remember the properties of a kind that
these two angles are equal.
Right.
These two angles are formed by non equal sides.
W.R is not equal to W.T. Similarly are is not equal.
Therefore these two angles will be equal.
Right.
All right.
Now, let's proceed.
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
hundred and five degrees.
Therefore, Angle W. is one zero five degree and angle is equal to one zero five degrees.