Question

Bradley cut a square hole out of a block of wood in wood shop. If the block was cube-shaped with side lengths of 9 inches, and the hole had side lengths of 4 inches, how much wood was left after the hole was cut out?


Note: Figure is not drawn to scale.
657 cubic inches
729 cubic inches
585 cubic inches
665 cubic inches

Answer 1

@dmndlife24

Answer 2

you find the volume of the big square and the little square, once you do you subtract the small from the big

Answer 3

9 x 9 x 9 - 4 x 4 x 4 = 665 cubic inches

Answer 4

no :P

Answer 5

Nope @dmndlife24

Answer 6

how

Answer 7

to find the volume of the remaining wood, first find the volume of the cube-shaped block. To find the volume of a cube use V = s3.

Vcube = s3
= (9 inches)3
= 729 cubic inches

Then, find the volume of the hole using the side lengths of the hole and the same depth as the cube, 9 inches.

Vhole = l • w • h
= 4 inches • 4 inches • 9 inches
= 144 cubic inches

Subtract the volumes.

729 cubic inches - 144 cubic inches = 585 cubic inches

Answer 8

I think you know how to do this already...lol

Answer 9

yeah lol

Answer 10

i didn't type that :P

Answer 11

it was an Explanation.