Question

Please help me out????? :)

Answer 1

Answer: 144°

Explanation:

The sum of the interior angles of a polygon is: I = 180(n - 2) where n is the number of sides.

To find the measure of one angle, divide the sum by the number of sides.

`I_(\ angle) = (180(n-2))/(n)\quad`

Note: A decagon has 10 sides so n = 10

`I_(\ angle)=(180(10-2))/(10)\\\\\\.\qquad =(180(8))/(10)\\\\\\.\qquad =18(8)\\\\\\.\qquad =144`