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Mathematics 19 Online
OpenStudy (anonymous):

What is the approximate volume of the cylinder? height = 52.2 cm; diameter = 20 cm A. 1640 cm3 B. 3300 cm3 C. 16,400 cm3 D. 65,600 cm3

OpenStudy (anonymous):

volume of cylinder= diameter*pi*height

OpenStudy (anonymous):

20*3.14*52.2

OpenStudy (anonymous):

3278.16, so B

OpenStudy (anonymous):

\[V=πr ^{2} h \]

OpenStudy (anonymous):

oh ok thanks guys

OpenStudy (anonymous):

His formula is wrong.

OpenStudy (anonymous):

\[3.14\times r ^{2}\times52.2\]

OpenStudy (anonymous):

how?

OpenStudy (anonymous):

\[r ^{2}=100\]\[3.14\times100\times52.2\]

OpenStudy (anonymous):

Just Google the formula. Mine is right.

OpenStudy (anonymous):

Do you have a calculator to solve.

OpenStudy (anonymous):

so the answer is c right

OpenStudy (anonymous):

Yes.

OpenStudy (anonymous):

thanks orange

OpenStudy (anonymous):

shoot my formula was wrong, I gave circumference instead of area

OpenStudy (anonymous):

Your welcome. :)

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