The measure of an exterior angle of a regular polygon is 72°. How can you find the measure of an interior angle of the polygon?

A. add 72 degrees to 90 degrees

B. Subtract 72° from 90°.

C) Subtract 72° from 108°

D) Subtract 72° from 180°.

Option C) Subtract 72° from 180°

Step-by-step explanation:

We are given the following in the question:

Measure of exterior angle = 72°

Properties of exterior angles:

Thus, we can write:

Let x degrees be the measure of the interior angle. Thus, we can write:

The measure of the interior angle is 108 degrees.

Thus, the correct answer is:

Option C) Subtract 72° from 180°

step-by-step explanation:

1. practice, practice & more practice

2. review errors

3. master the key concepts

do not try to memorise the processes.

4. understand your doubts.

5. create a distraction free study environment

6. create a mathematical dictionary

7. apply maths to real world problems.

fist on the left goes with the third on the right. second on the left goes with the fourth on the right. third on the left goes with the second on the right. the fourth on the left goes with first on the right