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Mathematics 8 Online
OpenStudy (futureboy1):

pls help will medal and fan

OpenStudy (futureboy1):

What is the volume of this cylinder? (Use π = 3.14.) assessment graphic A. 175.84 cm3 B. 703.36 cm3 C. 50.24 cm3 D. 354.68 cm3

Nnesha (nnesha):

what's the formula to find volume of the cylinder ?

OpenStudy (futureboy1):

pi times radius squared times height

Nnesha (nnesha):

right |dw:1448320420410:dw| what's the height of this cylinder ?

OpenStudy (futureboy1):

14

Nnesha (nnesha):

right and we need radius and remember radius is half of diameter

OpenStudy (futureboy1):

the radius is 2.83

Nnesha (nnesha):

hmm you should get perfect number how did you get decimal ?

Nnesha (nnesha):

formula \[\rm r=\frac{d}{2}\] r=radius d=diameter

OpenStudy (futureboy1):

hold on im working on it

Nnesha (nnesha):

okay :=))

Nnesha (nnesha):

what's the radius ?

OpenStudy (futureboy1):

@Nnesha

OpenStudy (futureboy1):

`i think its either B OR A

Nnesha (nnesha):

alright first you have to find radius i gave you the formula what would be the radius

OpenStudy (futureboy1):

@Nnesha THE ANSWER IS B

OpenStudy (futureboy1):

8/2=4 4*4= 16 16*14=224 224*3.14= 703.36 WHICH IS B

Nnesha (nnesha):

that's correct! and thanks for posting the work !

OpenStudy (futureboy1):

THANKS FOR YOUR HELP:)

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