SOLUTION: LeAnn wants to giftwrap a present she got for her little brother. How many square inches of giftwrap will be needed to cover a box that is 5in x 7in x 3in?

Question 1096055: LeAnn wants to giftwrap a present she got for her little brother. How many square inches of giftwrap will be needed to cover a box that is 5in x 7in x 3in?

Answer by amalm06(224) (Show Source): You can put this solution on YOUR website!
Let length=l=5,width=w=7,height=h=3
The box is 3-dimensional, with 6 faces. So we have three possible combinations, and for each combination we should multiply by 2 to account for a parallel face
(5)(7)(2)=70
(5)(3)(2)=30
(7)(3)(2)=42
70+30+42=142 sq in (Answer)
RELATED QUESTIONS
Caroline is making a fleece blanket for her bed. Her mattress is 72 inches wide by 84... (answered by Fombitz)

Hannah wants to buy a $475 camera. She can save $45 each week from her paycheck.... (answered by advanced_Learner)

10. Margie wants to place a wooden door on her condo. The wooden door will be shaped like (answered by stanbon)

Suburban Susie has a backyard that is a square with sides of 100 feet. She wants to have... (answered by JBarnum)

Sandra wants to place a door on the back entrance that leads to her patio. The solid... (answered by checkley77)

Sandra wants to place a utilitarian door on the back entrance that leads to her patio.... (answered by mananth,Alan3354)

mrs lopez wants to tile your kitchen floor. her room is 10 ft by 12 ft. how many 1 foot... (answered by mananth)

Adam wants to place a marble door on his entrance way. The marble door will be shaped... (answered by mananth)

Ricardo wants to replace the wooden door on his flat. The wooden door will be shaped like (answered by drk,checkley77)