60 POINTS!!

The interior angle measure of a regular polygon is calculated with the following formula, where n represents the number of sides or interior angles of the regular polygon.

Interior Angle = 180 (n-2)/n

A. Determine the measure of the interior angles of a regular decagon. In your answer, include all calculations.
B. Use your result from part A to identify whether or not a regular decagon can be used as the only shape in a regular tessellation.