Question

Find the sum of the measures of the interior angles of a convex 30-gon.

Answer 1

there is a formula to find this directly but i can never remember it for some reason. I do these by using the fact that the sum of the exterior angles of all polygons add up to 360 degrres.

Answer 2

so for a convex regular 30 sided polygon each exterior angle = 360/30 = 12 degrees
so each interior angle = 180-12 = 168 degrees

Answer 3

180*(30-2)

Answer 4

180*28

Answer 5

now count

Answer 6

so multiply this by 30 and you have your answer

Answer 7

180*(n-2) wjere n is number of sides

Answer 8

wait nononono

Answer 9

imagine this is less that sumof angle of triangle@@!!!!

Answer 10

yes - both methods give the same answer

Answer 11

180*(n-2) I know this!!!!!!! where n is now in this situation is 30

Answer 12

why do the posts sometimes come out in the wrong order!!???

Answer 13

my last 2 did just that!!

Answer 14

i dont know yeah i noticed that tool ooks like we are crazy

Answer 15

The posts are a little mixed up. Is 168 the final answer?