Question

Jason is wrapping a present. The box he is using is a rectangular prism with a length of 18 inches, a width 10 inches, and a height of 4 inches. Find how many square inches of paper he needs to wrap the entire box. ​

Answer 1

Answer:

584 sq inches

Step-by-step explanation:

Length,l =18 inches

Width,b =10 inches

Height,h=4 inches

Paper required to wrap the entire box=

TSA of the rectangular prism

=2(lb+bh+lh)

=2(18*10+10*4+18*4)

=2(180+40+72)

=2*292

=584sq inches

Answer 2

Given:

Length = 18 inches

Width = 10 inches

Height = 4 inches

To Find:

Number of square inches of paper he needs to wrap the entire box. ​

Explanation:

Paper required to wrap the entire box is equal to the TSA of the rectangular prism.

Hence the formula used for TSA

=2((l×b)+(b×h)+(l×h))

=2((18×10)+(10×4)+(18×4))

=2(180 + 40 + 72)

=2×292

=584 sq inches