Mensurationmedium · Past Paper
If the sides of a triangle are in the ratio 3:4:5 and its perimeter is 36 cm, find its area.
A54 sq. cm
B60 sq. cm
C48 sq. cm
D72 sq. cm
✓ Correct Answer: A — 54 sq. cm
Sides are 9, 12, 15. Since 9^2 + 12^2 = 15^2, it is a right triangle. Area = 0.5 * 9 * 12 = 54 sq. cm.
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