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If the volume of a cube is 125, then the total area of 2 of its faces
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05 Dec 2022, 02:45
05 Dec 2022, 02:45
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Question Stats:
93% (00:31) correct
6% (00:40) wrong based on 29 sessions
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If the volume of a cube is 125, then the total area of 2 of its faces is
20
25
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50
75
20
25
40
50
75
GRE Prep Club Team Member
Joined: 20 Feb 2017
Posts: 2506
Given Kudos: 1055
GPA: 3.39
Re: If the volume of a cube is 125, then the total area of 2 of its faces
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07 Dec 2022, 07:48
07 Dec 2022, 07:48
Expert Reply
Volume \(V= a^3\) while a= one side of a cube.
If the volume is 125 it means the length of one side of the cube is 5 as \(5^3=125\)
If the length of a side of a cube is 5, then the area of one side will be equal to \(5^2=25\) and two sides will be equal to 25*2=50
Answer: D
If the volume is 125 it means the length of one side of the cube is 5 as \(5^3=125\)
If the length of a side of a cube is 5, then the area of one side will be equal to \(5^2=25\) and two sides will be equal to 25*2=50
Answer: D
Re: If the volume of a cube is 125, then the total area of 2 of its faces
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09 Dec 2022, 04:00
09 Dec 2022, 04:00
Expert Reply
OE
The volume formula for a cube is V = s^3, so a volume of 125 yields a side of 5. One face therefore has an area of 25, and the total area of 2 faces is 50. If you selected choice (C), you may have found the perimeter rather than the area. If you selected choice (B), you may have forgotten to find the total for 2 faces, and if you selected choice (A), you may have done both.
The volume formula for a cube is V = s^3, so a volume of 125 yields a side of 5. One face therefore has an area of 25, and the total area of 2 faces is 50. If you selected choice (C), you may have found the perimeter rather than the area. If you selected choice (B), you may have forgotten to find the total for 2 faces, and if you selected choice (A), you may have done both.
