Geometry

Question Analysis:
This is a real-world application problem requiring the use of the interior angle sum formula to find the number of sides.
The main focus is working backward using the formula for the sum of interior angles.

Key Concept Explanation:
Interior angle sum of an n-sided polygon:
Sum = (n - 2) × 180

Step-by-Step Solution:
Given:
(n - 2) × 180 = 2340
Divide both sides:
n - 2 = 2340 ÷ 180
n - 2 = 13
n = 13 + 2
n = 15

Common Mistak...