Question

Master Level2. Brandon is wrapping the present shown below. How many square centimeters ofwrapping paper will he need?Height: 7 cmWidth:10 cmLength: 22 cm

Answer 1

Given the following:

Height = 7cm

Width = 10cm

length = 22cm

We were asked to find the number of square centimeters of wrapping paper Brandon will be needing.

To solve for this, we will be using the total surface formula.

Total surface formula (SA) = 2lw + 2lh + 2hw)

factoring out 2

SA = 2(lw + lh + hw)

lw = 22 x 10 = 220cm²

lh = 22 x 7 = 154cm²

hw = 7 x 10 = 70cm²

So,

SA =2(220 + 154 + 70)

SA = 2(644)

SA = 1288cm²