ART Rachaunn is laying out a pattern for a stained glass window. So far he has placed the 13 regular polygons shown. Find the measure of each angle at the circled vertex. Then find the sum of the angles.

180 degrees in a triangle so as triangle is equilateral that angle would be 180/3= 60 degrees

360 degrees in a square. 4 angles in a square. 360/4= 90 degrees

720 degrees in a hexagon. 6 angles in a hexagon. 720/6 = 120 degrees

360 degrees around a point.

so the answer is d.

pi x^2

step-by-step explanation:

pi times x squared

the answer is mp

step-by-step explanation: