Geometrymedium · Past Paper
If the base of an isosceles triangle is 12 cm and its perimeter is 32 cm, find its area.
A48 sq. cm
B60 sq. cm
C30 sq. cm
D24 sq. cm
✓ Correct Answer: A — 48 sq. cm
Equal sides = (32-12)/2 = 10. Height = sqrt(10^2 - 6^2) = 8. Area = 0.5 * 12 * 8 = 48 sq. cm.
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