Geometrymedium · Past Paper
Find the area of the largest triangle that can be inscribed in a semi-circle of radius r.
Ar^2
B2 * r^2
C(1/2) * r^2
D2 * pi * r^2
✓ Correct Answer: A — r^2
The base is the diameter (2r) and the maximum height is the radius (r). Area = 1/2 * 2r * r = r^2.
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