Question

One exterior angle of a regular polygon measures 40. What is the sum of the polygon's interior angle measures? Please show working.

Answer 1

`1260^o`

Explanation:

if one exterior angle `=40^0` this gives us the following information

number of sides `=360/40=9" "`sides

one interior angles `=180-40=140^0`

so the sum of interior angles`=9xx140`

`=1260^0`