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09 Apr 2018, 23:54
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A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
15%
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Question Stats:
79% (00:42) correct
21%
(01:03)
wrong
based on 53
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A right circular cylinder has a height of 8 inches and a diameter of 8 inches. How many cubic inches of water can the cylinder hold?
A. 128π
B. 144π
C. 256π
D. 288π
E. 512π
A. 128π
B. 144π
C. 256π
D. 288π
E. 512π
10 Apr 2018, 01:01
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Bunuel
Formula used: Volume of a cylinder - \(\pi*R^2*H\)
Given: H = 8 | R =\(\frac{D}{2} = 4\)
Therefore, The volume is \(\pi*4^2*8 = 128*\pi\)(Option A) ,which is also the cubic inches of water the cylinder can hold.
10 Apr 2018, 01:17
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Bunuel
CONCEPT: The quantities in CUBIC INCHES or CUBIC Centimeter etc represent VOLUME because volume has three dimensions therefore the result is in CUBIC units
CONCEPT: The quantities in SQUARE INCHES or SQUARE Centimeter etc represent AREA because Area has TWO dimensions therefore the result is in SQUARE units
Here the question is How many cubic inches of water can the cylinder hold?
i,e, We need to find the Volume of the Cylinder
Volume of Cylinder = πr^2h = π*(4^2)*8 = 128π
Answer: Option A
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