SOLUTION: The area of a triangle is 270. It has a base of 15 and a height of 12x. What is the area of a circle with a radius of 2x?

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Question 445447: The area of a triangle is 270. It has a base of 15 and a height of 12x. What is the area of a circle with a radius of 2x?
Answer by Gogonati(855) About Me  (Show Source):
You can put this solution on YOUR website!
The area of triangle is half of the base and height product.
270=%281%2F2%2915%2A12x, solving this equation we get: 2x=270%2F45=6+cm
The area of the circle with radius 6cm is: A=pi%2Ar%5E2+=pi%2A6%5E2=36%2Api cm^2.