Q

# Is something wrong in this diagram? Comment.

3.  Is something wrong in this diagram (Fig $\small 6.12$)? Comment.

Views

Yes, The measure of the exterior angle is given wrong.

As we know that in a triangle, the exterior angle is equal to the sum of opposite interior angles.

So,

Exterior angle = $50^0+50^0$

= $100^0$

Hence the exterior angle should be equal be $100^0$ instead of $50^0$.

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