Question

17. To measure the amount of space in rectangular prism, we need three dimensional figures as unit of measure. Which is the formula for finding the volume?A. V= 1/3 x B x HB. V= S x S x SC. V= L x W x H18. A rectangular prism has length of 4 cm, width of 3 cm and height of 5 cm. Find the volume.A. 50 cu cmB. 55 cu. cmC. 60 cu. cmD. 45 cu. cm19. 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

(17) The First part of the question asked us to find the formula used in determining measure of the amount of space in a rectangular prism which is invariably the volume.

The three dimensions needed to determine the Volume of a rectangular prism are:

Length

width

Height.

To get the volume, we mutiply the three together.

So:

Volume = Length * Width * Height.

V = L * W * H

Therefore, the correct option is C, which is V = L x W x H.

(18) Givne the following dimensios of a rectangular prism as:

Length = 4 cm

Width = 3 cm

Height = 5 cm

We are to find the volume

Recall, the formula for finding volume of the rectangular prism is:

V = L x W x H

V = 4 x 3 x 5

V = 60 cm³

Therefore, the volume of the rectangular prism = 60 cm³

So, the correct option is C, which is 60 cm³.