Question

please help me in finding out the answer​

Answer 1

Hello.

Since the measure of an exterior angle is equal to the sum of two opposite interior angles, (3x-10)=25+(x+15)

or, 3x-10-x-15=25

or, 2x-25=25

or, 2x=50

or, x=25...

Now, exterior angle= (3×25)-10

=65°

Interior angle= 25+15= 40°.

Hope this helps.

If you have any doubt, please ask.

Answer 2

Answer:

Please see the attachment below