Answer:
n = 20
Explanation:
in a polygon
interior angle + exterior angle = 180°, so
162° + exterior angle = 180° ( subtract 162° from both sides )
exterior angle = 18°
the sum of the exterior angles of a polygon = 360°
since the polygon is regular then each exterior angle is congruent, then
n = 360° ÷ 18° = 20