Fill in the blanks by using the correct word given in brackets.
Two polygons of the same number of sides are similar, if
(a) their corresponding angles are …………… and
(b) their corresponding sides are …………… (equal/proportional)

Two polygons of the same number of sides are similar if their corresponding angles are (a) equal and their corresponding sides are (b) proportional.

A regular polygon is a polygon that is equiangular (all angles are equal in measure) and equilateral (all sides have the same length).