Question

a water tank is in the shape of a right triangular cylinder with a height of 20 feet and a volume of 320(3.14) cubic feet. what is the diameter, in feet, of the water tank?

Answer 1

We know the formula for the volume and the only variable we do not know is the radius (2r=diameter) Therefore by isolating r and multiplying it by 2, we will find tge diameter V= (h(pi)r^2)/3 320(pi)=(20(pi)r^2)/3 3*320(pi)=20(pi)r^2 960/20=r^2 48=r^2 Sqrt(48)=r Diameter = 2(sqrt48)