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

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

Mathematics
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surface 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
what 6*6*6=216 not 864

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i dont get it
see the surface area of a cube with side length "a" = \[6 a^2\] the given surface area is 864 so \[6 a^2 = 864\]
so 6 is the ans
No ur over thinking it you just have to divide 864 by 6 so the answer is 144
o ok
A 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 one-step problem involving only one operation.
no no .....once u solve tht ....i mean get the side length |dw:1435892850326:dw|
so 12??
No
now u r havmg the sidelength .... so the area of one side = a^2 so the answer is (12)^2 = 144
ok thanks
The answer is still 144 he just used more steps
@rishavraj Why bother getting the side, when the answer is simply the area of one face? \(A_{total} = 6s^2\) \(A_{one~face} = \dfrac{A_{total}}{6} = \dfrac{864~in.^2}{6} = 144~in.^2 \)
@mathstudent55 oo yeah my bad.....

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