A rectangular prism has the following dimensions.
length: 18 inches
width: 1 foot
height: 14 inches
If all the dimensions of this prism are tripled, what will be the surface area of the new figure?
3,816 in.2
7,632 in.2
27,216 in.2
11,448 in.2

Question

A rectangular prism has the following dimensions.
length: 18 inches
width: 1 foot
height: 14 inches
If all the dimensions of this prism are tripled, what will be the surface area of the new figure?
 3,816 in.2
 7,632 in.2
 27,216 in.2
 11,448 in.2

vocaloid · Answer

SA = 2*l*w + 2*w*h + 2*h*l

vocaloid · Answer

make sure to multiply each dimension by 3 first, because the problem says that all dimensions are tripled

campbell_st · Answer

1st step should be to change all measurements to the same units....

I would use inches

length = 18, width = 12 and height  14