Question

An exterior angle of a triangle is 80 degree and two interior angles are equal . What will be the measure of each ?

Answer 1

The 2 interior angles which are same are of 40degrees each and the other angle is 100degree

Answer 2

Nice question! l want to answer too.

Given that
Exterior angle = 80 degree
Two interior angles are equal.

Solution
We know that exterior angle is equal to the sum of two interior opposite angles.
Let the interior angles be x. Then,
according to question,
x + x = 80
2x = 80
x = 80/2
x = 40
Hence, the measure of two interior angles are 40 degree.
The third angle = 180 - 80 degree = 100 degree.


Hope it helps you.
With regards@
Tanisha