Question

A room is in the shape of rectangular prism with dimensions 20 ft $\times$ 12 ft $\times$ 10 ft. Cost of tiling the floor @ $\$12/{\text{ft}}^2$ will be

Answer 1

In the Rectangular Prism shaped room,
Dimensions are 10 ft $\times$ 12ft $\times$ 20ft.


Tiling Cost = $\$12$ / ft${}^2$
Area of the floor = $l\times w$
$=20\times 12$
$=240$ ft${}^2$


Total cost for tiling = Area of the floor $\times$ Tiling cost
= Area of the floor $\times$ tiling cost
$=240$ ft${}^2$ $\times$12/ ft${}^2$
$=\$2880$.