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The measure of each interior angle of a regular polygon is eleven times that of an exterior angle. How many sides does the polygon have?

Short Answer

Expert verified

The polygon has 12 sides.

Step by step solution

01

Step 1. Write the formula to find the measure of each interior angle of the regular polygon.

The formula to find the measure of each interior angle of the regular polygon with sides is n-2180n.

02

Step 2. Write the formula to find the measure of each exterior angle of the regular polygon.

The formula to find the measure of each exterior angle of the regular polygon with sides is 360n.

03

Step 3. Find the equation for the given statement.

Consider the number of sides of the polygon be n.

As, the measure of each interior angle of a regular polygon is elven times that of an exterior angle.

Therefore, the equation for the given statement is:

measureofeachinteriorangle=11×measureofeachexterioranglen2180n=11×360n

04

Step 4. Find the value of n.

Solve the above equation to find the value of n.

n2180n=11×360nn2180=11×360n2=11×360180n2=11×2n2=22n=22+2n=24

Therefore, the value of n is 24.

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