Mathematics
14 Online
Nnesha (nnesha):
please help me
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OpenStudy (anonymous):
okay what do you need help with?
OpenStudy (anonymous):
this is a cylinder.. so what is the equation of a cylinder?
OpenStudy (anonymous):
pi times radius squared
times the height
Nnesha (nnesha):
how we know that we should use lateral area or surface area or volume
OpenStudy (anonymous):
well the question is asking to find the volume
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OpenStudy (anonymous):
are you going to use the approximation 3.14 for pi?
Nnesha (nnesha):
yes
OpenStudy (anonymous):
oaky so we are going to do 3.14 times (1.5)^2
OpenStudy (anonymous):
why 1.5? well the diameter of the circle is 3 so the so radius has to be 1.5 because 3 divided by two is 1.5
OpenStudy (anonymous):
1.5 times 1.5 is..2.25
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OpenStudy (anonymous):
right?
Nnesha (nnesha):
7.065 ...
OpenStudy (anonymous):
yup that is what 3.14 times 2.25 equals... we have one more step though. we have to multiply 7.065 by 4
OpenStudy (anonymous):
why? that is the height
what do you get when you multiply 7.065 by 4?
Nnesha (nnesha):
28.26
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OpenStudy (anonymous):
yes!
OpenStudy (anonymous):
goodjob!
OpenStudy (anonymous):
so the answer is 28.26 ft cubed
Nnesha (nnesha):
thanks
OpenStudy (anonymous):
yup im glad to help again!
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OpenStudy (anonymous):
just tag me whenever you need help again!
OpenStudy (anonymous):
of course!!!
its 11:32 pm right now
OpenStudy (anonymous):
im a night owl
OpenStudy (anonymous):
why?
OpenStudy (anonymous):
oh sorry continue typing
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Nnesha (nnesha):
oh so i can ask more question
OpenStudy (anonymous):
of course!!! i am always available but i will be heading to bed around midnight
OpenStudy (anonymous):
just tag me when you need me, or message me
OpenStudy (anonymous):
do you have anymore questions before i get some zzzzzz's?