This question has two parts. Be sure to scroll all the way down and make sure to show all of your work on the second part.
Jerry wants to wrap a present in a box for his friend. The box measures 10 cm wide, 4 cm high, and 17 cm long. How much wrapping paper will Jerry need to wrap the present?
Surface Area = 2lw + 2lh + 2wh
First, calculate the surface area of the box using the given formula:
Surface Area = 2lw + 2lh + 2wh
Surface Area = 2(17)(10) + 2(17)(4) + 2(10)(4)
Surface Area = 340 + 136 + 80
Surface Area = 556 square cm
Therefore, Jerry will need 556 square cm of wrapping paper to wrap the present.
Show all steps
Sure! Here are all the steps to calculate the surface area of the box:
1. Calculate the area of the sides with length 17 cm and width 10 cm:
2lw = 2(17)(10) = 340 square cm
2. Calculate the area of the sides with length 17 cm and height 4 cm:
2lh = 2(17)(4) = 136 square cm
3. Calculate the area of the sides with width 10 cm and height 4 cm:
2wh = 2(10)(4) = 80 square cm
4. Add up the areas of all the sides to get the total surface area:
Total Surface Area = 2lw + 2lh + 2wh
Total Surface Area = 340 + 136 + 80
Total Surface Area = 556 square cm
Therefore, Jerry will need 556 square cm of wrapping paper to wrap the present.