(a)

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 =
2



+

2


+
2


2lw + 2lh+2wh

Surface Area = 2(10)(4) + 2(10)(17) + 2(4)(17)

Surface Area = 80 + 340 + 136
Surface Area = 556 square cm

Therefore, Jerry will need 556 square cm of wrapping paper to wrap the present.