SOLUTION: What is the area of the largest triangle that can be drawn in a semicircle of r=9?

SOLUTION: What is the area of the largest triangle that can be drawn in a semicircle of r=9?

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Question 541184: What is the area of the largest triangle that can be drawn in a semicircle of r=9?
Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
The green triangle (base=18, height=9) is the largest I can draw in the top half of the r=9 circle.
Its area is
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