Question

the measure of an interior angle of a regular polygon of 20 sides is

Answer 1

Answer:

3240°

3240°When you divide a polygon into triangles, the number of triangles is always 2 less than the number of sides. This means that all of the interior angles of any 20-sided polygon add up to 3240°.

Answer 2

Step-by-step explanation:

$measure \: of \: interior \: angle \: of \: polygon = (no. \: of \: sides - 2) \times 180 \\ (20 - 2) \times 180 = 18 \times 180 = 3240$