A gift box in the shape of a rectangular prism measures 8 inches by 8 inches by 10 inches what is the least amount of wrapping paper needed to wrap the gift box answer

Respuesta :

The first thing we must do for this case is to find the surface area of the rectangular prism.
 We have then:
 A = 2 * (l * h) + 2 * (h * w) + 2 * (w * l)
 Where,
 w: width
 l: long
 h: height
 Substituting values we have:
 A = 2 * (10 * 8) + 2 * (8 * 8) + 2 * (8 * 10)
 A = 448 in ^ 2
 Answer:
 
the least amount of wrapping paper needed to wrap the gift box answer is:
 
A = 448 in ^ 2
To find the least amount of wrapping paper needed, you will find the surface area of the rectangular prism.

These are the areas of all the faces.

Top/Bottom: 8 x 8 = 64 in.²
Front/Back. 8 x 10 = 80 in.²
Left Side/Right Side: 8 x 10 = 80 in.²

(64 x 2) + (80 x 2) + (80 x 2) =
448 in.²

The least amount of wrapping paper needed is 448 in.².
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