Question

find the sum of the interior angles of a nonagon.
a. 140 degrees
b. 1,620 degrees
c. 1,260 degrees
d. 1,450 degrees

Answer 1

Use the formula:

\(180(n - 2)\)

Where '2' is the number of sides.

Answer 2

First of all, do you know how many sides a nonagon has?

Answer 3

nope

Answer 4

Google it..

Answer 5

nonagon is a pentagon with 9 sides, just use igreens formula

Answer 6

so I change the 2 to 9?

Answer 7

^^^^^^^^^^^^^^^^

Answer 8

No, we don't change '2'..

'n' is the number of sides..and since it has 9 sides, we replace 'n' with 9.

Answer 9

Oh I messed up and said '2' is the number of sides..sorry xD

Answer 10

Plug in 9 for n

Answer 11

so its c

Answer 12

\(\color{blue}{\text{Originally Posted by}}\) @iGreen
Use the formula:

\(180(n - 2)\)

***Where '2' is the number of sides.***
\(\color{blue}{\text{End of Quote}}\)

No, that part is incorrect :P

Answer 13

Yes, I realized what you meant after :p

Answer 14

Yep, 1260 is correct.

Answer 15

Yup, that's good!