Beginning Geometry

[xxsheevxx]

Find the sum of the degree measures of the interior angles of a polygon that has 7 sides.

Find the sum of the degree measures of the interior angles of an octagon.

Find th sum of the measures of the exterior angles of a polygon that has 8 sides.

Thanks so much for your help and time!

 

[Aladdin]

A polygon having 7 sides is a Heptagon.

In general , the sum of interior angles of a regular polygon formula is = (n-2) × 180 . . .

n is the number of sides of the polygon .

 

[xxsheevxx]

Okay, thank you so much!