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29 votes
29 votes
Kaitlyn and Hakim each bought a tube

of candy. Both containers cost the same
amount. Which container required more
plastic to make?
d = 7 cm
CANDY
122 cm
d = 11 cm
CANDY
85 cm

Kaitlyn and Hakim each bought a tube of candy. Both containers cost the same amount-example-1
User Ckramer
by
3.0k points

1 Answer

18 votes
18 votes

Answer:

container B requires more plastic to make.

Explanation:

Container A:

diameter- 7 cm

height- 122 cm

radius- 3.5 cm

calculating for the surface area

SA=2×π×r×r+2×π×r×h

SA=2(3.14)(3.5)(3.5)+2(3.14)(3.5)(122)

SA=76.93+2681.56

SA=2758.49 cm^2

Container B:

diameter- 11 cm

height- 85 cm

radius- 5.5 cm

calculating for the surface area

SA=2×π×r×r+2×π×r×h

SA=2(3.14)(5.5)(5.5)+2(3.14)(5.5)(85)

SA=189.97+2935.90

SA=3125.87 cm^2

Container B required more plastic to make

User Fayette
by
2.8k points