How to find an angle in a quadrilateral

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SAT Math › How to find an angle in a quadrilateral

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If a polygon has 10 sides, what is the measure of each exterior angle?

$36^{\circ}$

$360^{\circ}$

$3.6^{\circ}$

$63^{\circ}$

$72^{\circ}$

Explanation

In order to figure this out, we need to remember the formula for finding exterior angles. $\frac{360^{\circ}}{n}$ , where is the number of sides of a polygon. Now we simply do the following calculation.

$\frac{360^{\circ}}{10}=36^{\circ}$

So the measure of each exterior angle is $36^{\circ}$ .

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