*A regular polygon has exterior angle measure `(x+3)^circ` and interior angle measure of `(13x-33)^circ` . Find the measure of each angle.*

(1) Since the polygon is regular, each interior angle is congruent, as are the exterior angles.

(2) The interior angle and exterior angle at a vertex are supplementary, thus:

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*A regular polygon has exterior angle measure `(x+3)^circ` and interior angle measure of `(13x-33)^circ` . Find the measure of each angle.*

(1) Since the polygon is regular, each interior angle is congruent, as are the exterior angles.

(2) The interior angle and exterior angle at a vertex are supplementary, thus:

`13x-33+x+3=180`

`x=15`

(3) **Then each interior angle is `162^circ` and each exterior angle is `18^circ` **

** There are `(360)/(18)=20` sides, and the sum of the interior angles is `20*162=3240^circ` **