Correct Answer - Option 4 : 8
Given :
Sum of interior angle = 1080∘
Formula:
Sum of interior angles = (n − 2) × 180∘
Calculations:
According to question,
Sum of interior angles = (n − 2) × 180∘
⇒ (n − 2) × 180∘ = 1080∘
⇒ (n − 2) = 1080∘/ 180
⇒ (n − 2) = 6
⇒n = 6 + 2 = 8
∴ No. of sides of polygon is n = 8