Question

The area of the largest triangle that can be inscribed in a semi-circle of radius ‘r’ is:

• A. $r^2$
• B. $r^3$
• C. $2r^2$
• D. $\frac{1}{2}{r}^2$

Answer 1

The correct option is A

$r^2$

The largest triangle is isosceles triangle and Area $=\frac{1}{2}{r}^2\times 2=r^2$