Question

if the interior angle of every two sides of a polygon is 120 deg. find the number of sides of polygon.

Answer 1

use the formula.

Answer 2

the formula for interior angles.

Answer 3

which formula

Answer 4

\[interior \angle =\frac{(n-2)*180}{n}\]

Answer 5

\[120 = \frac{(n-2)*180}{n}\]Cross multiply to solve.

Answer 6

can you solve now?

Answer 7

i got 6 answer

Answer 8

yup that is right Good Job : )

Answer 9

thanks

Answer 10

well this means that the polygon is 6-sided.

you can also use this formula for finding total interior angles.