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
