Geometry

Question Analysis:
This question gives the total interior angle sum and asks for the number of sides.
The main focus is solving an equation using the interior angle sum formula.

Key Concept Explanation:
Sum of interior angles = (n − 2) × 180°
To find n, solve the equation.

Step-by-Step Solution:
3060 = (n − 2) × 180
Divide both sides:
n − 2 = 3060 ÷ 180 = 17
n = 17 + 2 = 19

Common Mistakes:
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