If a regular polygon has an exterior angle of 7.2°, then determine the sum of all the interior angles.

8640

Step-by-step explanation:

All exterior angles must = 360 degrees.

360/7.2= 50

There are 50 exterior angles, so it's logically concluded that there are 50 sides.

Interior angle= 180-7.2= 172.8

172.8 x 50= 8640.

38.5

step-by-step explanation:

lets say, first number = r

second number = 3r+7

total = 49

(r)+(3r+7)= 49

4r+7 = 49

4r = 42

r = 42/4

r= 10.5

3r+7 = 3(10.5)+7 = 38.5

hope this

its c or d   take a lucky guess my dude