Question

The interior angles in a regular polygon sum to 1620°. How many sides does the polygon have?

Answer 1

Step-by-step explanation:

assuming all the angles are equal, number of angles=number of sides,now a triangle has 3 sides with sum of angles 180 degrees, quadrilateral which is made up of 2 triangles=180×2=360 degrees and so on..... so 1620÷180=9 and 9+2=11(since the multiple 1 represent a triangle,2 a quadrilateral and so on....so add 2 to ...