Answer:

Problem:

A rectangular box has length of 24 inches a width of 18 inches and a height of 30 inches. What is the surface area.

Solution:

Formula of rectangular box to find the surface area:

• = 2lw + 2lh + 2wh

To find the surface area of a rectangular box we need to multiply the given numbers base on the formula.

• = 2lw + 2lh + 2wh
• = ( 2 × 24 × 18 ) + ( 2 × 24 × 30 ) + ( 2 × 18 × 30 )
• Surface Area = 864 + 1,440 + 1,080
• Surface Area =

∴ Therefore, the surface area of a rectangular box is 3,384 in.

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