Maths-
General
Easy
Question
Find the area of largest triangle that can be inscribed in a semi-circle of radius 9 cm.
Hint:
The correct answer is: 81 cm2
It is given that radius of the circle = 9 cm
⇒ Diameter = 2 
r = 2 9 = 18 cm
As we can see in the picture
Base of the triangle = diameter = 18 cm
Height of the triangle = radius = 9 cm
Area of the triangle = 
= 
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