The volume of a nominal 4×8×2½ inch brick is ___ inches.
A) 80 cubic
B) 8 cubic
C) 800 square
D) 80 square

Question

The volume of a nominal 4×8×2½ inch brick is ___ inches. 
A) 80 cubic
B) 8 cubic
C) 800 square
D) 80 square

thesmartone · Answer

Multiply it

4 * 8 * 2.5 = ?

igster1112 · Answer

I got 80 but would it be cubic or square?

thesmartone · Answer

Basically, the length, width and height all have inches to it

4 inches * 8 inches * 2.5 inches 

and inches * inches = inches^2 or square inches

so what would inches * inches * inches = ?

igster1112 · Answer

I thought it would be cubic because it's 3 numbers.

thesmartone · Answer

yes, and because each number has an inch to it

and inch * inche * inch = inch^3

which is nothing but cubic inches

igster1112 · Answer

Ok thank you

jim_thompson5910 · Answer

'cubic' is correct. You can think of the volume re-arranged and broken up into 80 cubes all of the same dimension (each is 1 inch by 1 inch by 1 inch)

igster1112 · Answer

Ok thanks