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anonymous
 one year ago
The surface area of a cube is 864 in2.
What is the area of one face of this cube?
anonymous
 one year ago
The surface area of a cube is 864 in2. What is the area of one face of this cube?

This Question is Closed

rishavraj
 one year ago
Best ResponseYou've already chosen the best response.2surface area of cube = 6a^2 so \[6 a^2 = 864\] once u get the side length i.e "a" u can calculate the area of one face

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0what 6*6*6=216 not 864

rishavraj
 one year ago
Best ResponseYou've already chosen the best response.2see the surface area of a cube with side length "a" = \[6 a^2\] the given surface area is 864 so \[6 a^2 = 864\]

wil476003
 one year ago
Best ResponseYou've already chosen the best response.3No ur over thinking it you just have to divide 864 by 6 so the answer is 144

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1A cube is made up of 6 faces. You are given the total surface ares of the 6 faces. You want the surface area of one single face. This is a onestep problem involving only one operation.

rishavraj
 one year ago
Best ResponseYou've already chosen the best response.2no no .....once u solve tht ....i mean get the side length dw:1435892850326:dw

rishavraj
 one year ago
Best ResponseYou've already chosen the best response.2now u r havmg the sidelength .... so the area of one side = a^2 so the answer is (12)^2 = 144

wil476003
 one year ago
Best ResponseYou've already chosen the best response.3The answer is still 144 he just used more steps

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1@rishavraj Why bother getting the side, when the answer is simply the area of one face? \(A_{total} = 6s^2\) \(A_{one~face} = \dfrac{A_{total}}{6} = \dfrac{864~in.^2}{6} = 144~in.^2 \)

rishavraj
 one year ago
Best ResponseYou've already chosen the best response.2@mathstudent55 oo yeah my bad.....
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