Question

(a) How many sides does a regular polygon
has if the measure of an exterior angle is
45° ?​

Answer 1

Answer:

yes you first

Step-by-step explanation:

180-45

=135. follow me.........

Answer 2

Answer :–

• 8 sides does a regular polygon has if the measure of an exterior angle is 45°.

Explaination :–

We know that,

Sum of all the sides of a regular polygon is 360°.

According to the question,

The exterior angle of a regular polygon is 45°

Number of sides of a regular polygon = $\frac{\cancel{360 \degree}}{\cancel{45 \degree}}$

Cut it by 5.

We get,

→ $\frac{\cancel{72 }}{\cancel{9 }}$

Now, cut it by 9.

We get,

→ 8

Hence, a regular polygon has 8 sides.