document.write( "Question 1079870: The inner circumference of a circular race truck is 352m.The truck is everywhere 2.5m wide. Calculate the cost of (I) levelling the truck at the rate of 1.80 per m^2. (II) putting up a fence along the fence along the outer circle of 3.25 per m \n" ); document.write( "
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The inner circumference of a circular race truck is 352m. The truck is everywhere 2.5m wide. Calculate the cost of (I) leveling the truck at the rate of 1.80 per m^2. (II) putting up a fence along the fence along the outer circle of 3.25 per m
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\n" ); document.write( "The inner circumference of a circular race truck is 352m.
\n" ); document.write( "Find the radius of the inside.
\n" ); document.write( "C = 2pi*r1 = 352
\n" ); document.write( "r1 = 176/pi meters.
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\n" ); document.write( "The outside radius r2 = 2.5 + 176/pi meters
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\n" ); document.write( "Calculate the cost of (I) leveling the truck at the rate of 1.80 per m^2.
\n" ); document.write( "The area of the track is the area of the outside circle minun the area of the inside circle.
\n" ); document.write( "Area = pi*(r2)^2 - pi*(r1)^2
\n" ); document.write( "Cost = 1.8*Area
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\n" ); document.write( "(II) putting up a fence along the fence along the outer circle of 3.25 per m
\n" ); document.write( "Outside circumference = 2pi*r2
\n" ); document.write( "Cost = 3.25*C \n" ); document.write( "
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