Question

Cube

12. A piece of wire is cut and soldered to form
the framework of a cube. The volume of the
cube is 10.645 cm Find
(a) the length of a side of the cube.
(b) the length of the wire used
BRAINORIOS

What is the length of a side of the cube?

Answer 1

Explanation:

let side of cube=x

volume of cube=x³

x³=10.645

`x=(10.645)^{(1)/(3) } \\x \approx 2.19979`

or x≈2.2

a.

length of side of cube=2.2 cm

b.

length of wire used=3[4×2.2]=26.4 cm