Question

Rohan is wrapping a rectangular box that measures 5x6x12
(inches). How many square feet of wrapping paper does he
required?
A: 529sq.inches
B: 229sq.inches
C: 324sq.inches
D: 579sq.inches​

Answer 1

Given:-

• Rohan is wrapping a rectangular box that measures 5 × 6 × 12 (inches).

To Find:-

• Paper does he required

Formula Used:-

• ${\boxed{\bf{TSA\:of\: Cuboid=2(lb + bh + hl)}}}$

Solution:-

Firstly,

$\bf :\implies\:TSA\:of\: Cuboid=2(lb + bh + hl)$

Here,

• l = 5 inches

• b = 6 inches

• h = 12 inches

Putting Values,

$\sf :\implies\:TSA\:of\: Cuboid=2(lb + bh + hl)$

$\sf :\implies\:TSA\:of\: box=2(5\times6 + 6\times12 + 12\times5)$

$\sf :\implies\:TSA\:of\: box=2(30 +72+ 60)$

$\sf :\implies\:TSA\:of\: box=2\times162$

$\bf :\implies\:TSA\:of\: box=324\:inches^2$

Hence, 324 inches sq feet of paper is required to wrap the rectangular box.

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More Formulas for Cuboid:-

• $\bf Lateral\:Surface\:Area=2h(l + b)$

• $\bf Volume=l\times b\times h$

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