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प्रश्न
The area of the largest triangle that can be inscribed in a semi-circle of radius r, is
विकल्प
r2
2r2
r3
2r3
उत्तर
The triangle with the largest area will be symmetrical as shown in the figure.
Let the radius of the circle be r.
Hence,
`ar (Δ ABC)=1/2(r)(2r)`
`= r^2` sq.unit
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