Question

Using the net what is the total surface area of the shoe box below

Answer 1

SA = 280 in²

Explanation:

The net comprises:

• 2 rectangles with width 5 in and length 10 in
• 2 rectangles with width 6 in and length 10 in
• 2 rectangle with width 5 in and length 6 in

To calculate the surface area (SA), calculate the area of each rectangle and add them together.

Area of a rectangle = width x length

Therefore, SA of net = 2(5 x 10) + 2(6 x 10) + 2(5 x 6)

⇒ SA = 100 + 120 + 60

⇒ SA = 280 in²