The lateral area of a cube is 36 square inches. How long is each edge?

Question

aaronq · Answer

$Area_{cube}=side^2=36~in^2$

$side=\sqrt{36~in^2}$

janu16 · Answer

So what do you do 36 divide by 3?

janu16 · Answer

I mean 36/4?

aaronq · Answer

the area is given by the product of two sides of a square, or equivalently, the square of the side.

$A=side*side=side^2$

if we know the area is 36 in^2, we can take the squared root of this number to get the length of one side.

janu16 · Answer

So is it gonna be 3?

aaronq · Answer

no, what's the squared root of 36?

$\sf \huge  side =\sqrt{36}$

aaronq · Answer

in other words, whats a number when multiplied by itself gives you 36?

janu16 · Answer

6 but thats not my answer choice

aaronq · Answer

that's the answer though..

janu16 · Answer

I think u do square root of 6

aaronq · Answer

oh it's a cube, i'm sorry i didn't read the question right.

aaronq · Answer

so it's all sides of a cube, there are 6 sides on a cubes surface.

so first we have to divide 36 by 6 which gives 6

then we take the squared root

janu16 · Answer

Its fine and thanks i  will give you a medal

aaronq · Answer

you are right, squared root of 6 shoujld be the answer

janu16 · Answer

You do 36 divided by 4 than square root 9 to get 3