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Smiley75
 4 years ago
Todra investigates the measures of a cylinder in math class. she knows that the volume of the cylinder is 1131.0 cubic centimeters. todra determines that the length of the cylinder is 40 centimeters. What is the radius of the cylinder?
a. 1 centimeter
b. 2 centimeters
c. 3 centimeters
d. 4 centimeters
Smiley75
 4 years ago
Todra investigates the measures of a cylinder in math class. she knows that the volume of the cylinder is 1131.0 cubic centimeters. todra determines that the length of the cylinder is 40 centimeters. What is the radius of the cylinder? a. 1 centimeter b. 2 centimeters c. 3 centimeters d. 4 centimeters

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sstarica
 4 years ago
Best ResponseYou've already chosen the best response.0alright, you have the given which is the following:  V = 1131.0 cm^3  L = H = 40 cm and we know that the general formula of the volume of the cylinder is : \[V= \pi r^2 h\] you have V and you have H, substitute and find R ^_^

lokisan
 4 years ago
Best ResponseYou've already chosen the best response.0The volume of a cylinder is \[V=\frac{1}{3}(area_.base)(height)\]

sstarica
 4 years ago
Best ResponseYou've already chosen the best response.0are you sure? because that's the volume of a cone loki

lokisan
 4 years ago
Best ResponseYou've already chosen the best response.0ah...yes...kibosh the third. doing this too long...

sstarica
 4 years ago
Best ResponseYou've already chosen the best response.0lol, np I do such mistakes too ^_^

sstarica
 4 years ago
Best ResponseYou've already chosen the best response.0did you get the result?

Smiley75
 4 years ago
Best ResponseYou've already chosen the best response.0i guess..is it 3 centimeters?

sstarica
 4 years ago
Best ResponseYou've already chosen the best response.0\[1131/40\pi = r^2\]\[r = \sqrt{1131/40\pi} = 9.42 = 9 cm \] substitute and solve for r ^_^

sstarica
 4 years ago
Best ResponseYou've already chosen the best response.0do you get it now ? :)
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