Question

Which polygon has an interior angle sum of 1080°?

Answer 1

Answer:

8-sided polygon:  octagon

Step-by-step explanation:

The formula for calculating the sum of interior angles of a polygon is:

(n − 2) × 180° (where n is the number of sides)

Therefore,

⇒ (n − 2) × 180 = 1080

⇒ n - 2 = 6

⇒ n = 8

Therefore, the polygon is 8-sided:  octagon

Answer 2

Answer:

Octagon

Step-by-step explanation:

180(n - 2) = 1080

n - 2 = 1080/180

n - 2 = 6

n = 8

=> Polygon with 8 sides

=> Octagon