SOLUTION: Write a quadratic equation and solve. Use a calculator and the decimal approximation of 3.14 for π(pi). The volume of the circular cylinder is 45,600 ft^3. Find its radius

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Write a quadratic equation and solve. Use a calculator and the decimal approximation of 3.14 for π(pi). The volume of the circular cylinder is 45,600 ft^3. Find its radius       Log On


   

Question 1028177: Write a quadratic equation and solve. Use a calculator and the decimal approximation of 3.14 for π(pi).
The volume of the circular cylinder is 45,600 ft^3. Find its radius to the nearest foot. (the cylinder is 30 ft)
FORMULA:
V = πr^2H
Answer by Cromlix(4381) About Me  (Show Source):
You can put this solution on YOUR website!
Hi there,
Volume = π x r^2 x h
45,600 = π x r^2 x 30
r^2 = 45,600/(π30
r^2 = 483.831027
r = √483.831027
r = 21.996 ft
Radius = 22 ft. (Nearest foot)
Hope this helps :-)