Mensurationmedium · Past Paper
A right triangular prism has a base with sides 3 cm, 4 cm, and 5 cm. If its height is 10 cm, find its lateral surface area.
A120 cm²
B126 cm²
C60 cm²
D132 cm²
✓ Correct Answer: A — 120 cm²
Lateral surface area = Perimeter of base * height = (3+4+5) * 10 = 12 * 10 = 120 cm².
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