Question

A cube has a surface area of one hundred fifty square yards. What is the length of a side?

Answer 1

Surface area (\(SA\)) of a cube
$$
SA=l\times w\times 6
$$
Where \(l\) is the length and \(w\) is the width.
But this is a cube, so \(l=w\)
So,
$$
SA=6l^2=150\\
\implies l=\sqrt{\cfrac{150}{6}}=?\text{ yards}
$$
Just calculate and \(l\) will be your answer.

Answer 2

so what's the answer