Mensurationmedium · Past Paper
The diagonal of a rectangle is 5 cm and one side is 3 cm. Its area is:
A12 sq. cm
B15 sq. cm
C20 sq. cm
D10 sq. cm
✓ Correct Answer: A — 12 sq. cm
Other side = sqrt(5^2-3^2) = 4. Area = 3 * 4 = 12 sq. cm.
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