Find the volume and surface area of a rectangular box 5 ft by 2.5 ft by 3 ft.
The volume of a rectangular box is found by multiplying the length, width, and height.
Volume = length × width × height
= 5 ft × 2.5 ft × 3 ft
= 37.5 ft^3
The surface area of a rectangular box is found by adding up the areas of all 6 faces.
The area of a rectangle is found by multiplying the length and the width.
Surface area = (2 × length × width) + (2 × length × height) + (2 × width × height)
= (2 × 5 ft × 2.5 ft) + (2 × 5 ft × 3 ft) + (2 × 2.5 ft × 3 ft)
= 25 ft^2 + 30 ft^2 + 15 ft^2
= 70 ft^2.