Question

If angle 1 is 40 degree and angle 3 is 65 degree. Find the measure of angle 2.​

Answer 1

Step-by-step explanation:

The third angle of the triangle measure 40 degrees and 65 degrees is 75 degree.

Because,

The sum of three angles in the triangle is 180 degree, according to interior angle theorem.

Let the third angle be ‘ x ‘

40 + 65 + x = 180

105 + x = 180

x = 180 - 105

x = 75