Question

Find the sum of the measures of the interior angles of each polygon:
1.Heptagon 2.Decagon 3.Dodecagon 4. Nonagon 5.15-gon 6. 25-gon

Answer 1

the formula would be \[\large (n-2) 180^o\] where n is the number of sides

Answer 2

So I multiply each side by 180?

Answer 3

no no...for example in heptagon...how many sides?

Answer 4

It has 7 sides right?

Answer 5

yes...subtract 2

Answer 6

5

Answer 7

multiply by 180

Answer 8

Oh! Thanks man

Answer 9

sure no problem ^_^

Answer 10

To add to lgba, n = number of vertices

Answer 11

But sure there's no difference

Answer 12

number of vertices...number of sides..same thing :P

Answer 13

Thanks. Im realllllyyy falling behind in math so Im going to be posting alot

Answer 14

So would a heptagon be 900?