SSC CPO 2025 PYQ — Question 142

SSC CPO - 11 Dec 2025 - Shift 1 • Quantitative Aptitude • Q142

A right prism is built on a triangular base with side lengths measuring 13 cm, 14 cm, and 15 cm. If the vertical height of the prism is 12 cm, what is the lateral surface area?

Show answer & explanation

Correct answer: A

Explanation

Sides of the triangle = 13 cm, 14 cm, 15 cm; Height = 12 cm

According to the formula:

Lateral Surface Area = Perimeter of the base × Height

Perimeter = 13 + 14 + 15 = 42

Lateral Surface Area = 42 × 12 = 504 cm²