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anonymous
 5 years ago
A landscaper dug a hole to plant a tree. The hole is shaped like a cylinder. If the hole is 1 foot 11 inches deep and has a diameter of 2 feet 1 inch, estimate how much dirt was removed.
anonymous
 5 years ago
A landscaper dug a hole to plant a tree. The hole is shaped like a cylinder. If the hole is 1 foot 11 inches deep and has a diameter of 2 feet 1 inch, estimate how much dirt was removed.

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amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0the volume of any cone shaped object is (1/3)(Base area)(height)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0we have a depth of 23 inches; and a base area of (12.5)^2pi

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0(1/3)(156.25pi)(23) = your answer

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0about 1197.9pi inches^3

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0ack!!...helps if I read the entire question lol

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Volume of a cylinder is Area of the Base * Height. Here, the base is a circle Area of a circle = pi r^2 So Volume = pi * r^2 * h Volume = 3.14 * 23^2 * 25 Volume 41526.5 in^3 This is the exact answer... But I noticed your problem says to estimate. So I would use Volume = 3.14 * 2 * 2 = 12.56 ft^3

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i was giving answer choices and neither are the choices

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0(156.25pi)(23) = 3593.75 inches^3

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0a 6.3 ft2 b.7.1 c.7.5 d.8.9

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0ah...feet, i converted to inches to make life easier on me :)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0i get 6.5..... 6.3 is close if you use a short form of pi

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0please explain how u got that answer showing work is required (homework assignment)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0i turned the measurements into fractions: 1'11" = 1 11/12 = 23/12 this is your depth/height 2'1" = 2 1/12 = 25/12 this is your diameter, we need half of it. 25/12/2 = 25/24 is your radius base area is pi(r^2): pi (25/24)^2 = pi(625/576) base area times height is area of cylinder pi(625/576)(23/12) = pi(14375/6912) when we plug these into the calulator... we get 2.08pi = 2.08(3.14) = 6.5312 so we go with the closest answer

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0thank you very much for your help
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