document.write( "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? \n" ); document.write( "
Algebra.Com's Answer #306923 by Gogonati(855)\"\" \"About 
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The area of triangle is half of the base and height product.\r
\n" ); document.write( "\n" ); document.write( "\"270=%281%2F2%2915%2A12x\", solving this equation we get: \"2x=270%2F45=6+cm\"\r
\n" ); document.write( "\n" ); document.write( "The area of the circle with radius 6cm is: \"A=pi%2Ar%5E2+=pi%2A6%5E2=36%2Api\" cm^2.
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