Question

19. A wooden box has 20 cm on each edge. Find its volume.A. 875 cu. cmB. 8 000 cu. cmC. 8 875 cu. cm20. Juana’s sewing box is 3 dm long, 2dm wide, and 4 dm high. What is its volume?A. 12 cu. dmB. 24 cu. dmC. 33 cu. dmD. 34 cu. dm21. Five metal cubes with sides of 5 cm were melted and casted into a bigger cube. Find the volume of the new cube.A. 125 cu.cmB. 405 cu. cmC. 325 cu. cmD. 625 cu. cm

Answer 1

It is given that the wooden box has 20cm on each edge. It is required to find its volume.

Since the edges have equal lengths of 20cm, it follows that the box is a cube with a side length of 20cm.

Recall that the Volume of a Cube with side length s is given as:

`V=s^3`

Substitute s=20 into the formula:

`V=20^3=8000\text{ cu. cm}`

The answer is B.