Question

Find the volume of a cone with a diameter of 9 inches and a height that is 5 times the radius. Use 3.14 for pi, and round your answer to the nearest hundredth. 47.1 in3 78.51in3 476.89 in3 1430.66 in3

Answer 1

Use the formula

V = (πr^2h)*(1/3)

Now substitute the given numbers for their respective variables.
π = ~3.14
r = diameter/2 = 9/2 = 4.5 inches
h = height = 5 * r = 5 * 4.5 = 22.5 inches
Now it's your turn!