Question

The sum of the angles in a convex 10-sided polygon is:
a.1800°
b.188°
c. 3600°
d. 1440°

Answer 1

The correct answer is D

Answer 2

Why is D correct?

Answer 3

The sum of the interior angles of a polygon with n sides is 2n - 4 right-angles.
With n = 10, this gives:
90(2*10 - 4)
= 1440deg.

That makes each angle 1440/10 = 144deg.

Answer 4

I just did (n-2)*180
8*180=1440

Answer 5

I just did it another way. Whats the diff?

Answer 6

The diff is that you're not supposed to give the answers. Even in multiple choice questions. You're here to explain, not do their homework

Answer 7

Oh ok, im sorry. Should I delete that post?

Answer 8

nah it's fine, you ended up explaining

Answer 9

Ok