Find the area of the largest triangle that can be inscribed in a semi-circle of radius r unit.

Find the area of the largest triangle that can be inscribed in a semi-

1.	Find the area of the largest triangle that can be inscribed in a semi-circle of radius r unit.
Answer» As base of triangle inscribed in a semi circle is 2rand altitude is r then area of two right angled triangle with base and height with r is 2r.... Thank you???