math
posted by becky .
how do you figure out the diameter of a pipe that is 40 feet high and holds 200000 gallons

v = pi r^2 h
200000 gallons = 26736.11 ft^3
26736.11 = pi r^2 (40)
r^2 = 212.76
r = 14.59 ft
diameter is thus 29.18 ft
Respond to this Question
Similar Questions

5th grade math
You have 2 pails. One holds 4 gallons and the other holds 7 gallons. How can you go to the lake and bring back exactly 5 gallons of water? 
Math
A customer wants to make a teepee in his backyard for his children. He plans to use lengths of PVC plumbing pipe for the supports on the teepee, and he wants the teepee to be 12 feet across and 8 feet tall. The customer needs to … 
Math (Repost)
A customer wants to make a teepee in his backyard for his children. He plans to use lengths of PVC plumbing pipe for the supports on the teepee, and he wants the teepee to be 12 feet across and 8 feet tall. The customer needs to … 
mAtH
a cylindrical barrel is 2.8 feet in diameter and 8 feet high. If a cubic foot holds about 7.5 gallons of liquid, how manygallons of water will this barrel hold? 
math
a cylindrical barrel is 2.8 feet in diameter and 8 feet high. If a cubic foot holds about 7.5 gallons of liquid, how manygallons of water will this barrel hold? 
math
a cylindrical barrel is 2.8 feet in diameter and 8 feet high. if a cubic foot holds about 7.5 gallons of liquid how many gallons of water will this barrel hold? 
Physics
An organ pipe that is closed at one end has a fundamental frequency of 122 Hz. There is a leak in the church roof, and some water gets into the bottom of the pipe, as shown in the Figure. The organist then finds that this organ pipe … 
algebra
A pipe manufacturer makes pipes of four different sizes. The diameter of each pipe is two times the diameter of the pipe of the next smaller size. The diameter of the biggest pipe is 16 centimeters. What is the diameter of the pipe … 
algebra
A pipe manufacturer makes pipes of four different sizes. The diameter of each pipe is two times the diameter of the pipe of the next smaller size. The diameter of the biggest pipe is 16 centimeters. What is the diameter of the pipe … 
Physics
A horizontal water pipe goes from a large diameter to a small diameter and then back to the first diameter as shown in the figure below. The level of water (8cm in the larger tube and 4 cm in the constricted tube) in the small vertical …