28-03-2019
Mathematics

contestada

A box is 8 1/2 inches wide 12 3/4 inches long in 5 1/2 inches tall what is the total surface area of 3 such boxes

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melahdeethemighty melahdeethemighty

02-04-2019

Step-by-step explanation:

Surface Area Formula: SA=2lw+2lh+2hw

SA is surface area. l is length, w is width, h is height. Make sure to follow PEMDAS and keep multiplication together before adding.

Now substitute values

2(12 3/4*8 1/2)+ 2(12 3/4 * 5 1/2)+ 2(5 1/2*8 1/2)

SA=450.5 inches squared

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