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klio [65]
2 years ago
10

Please can someone answer this for the love of GOD?! Please and I will give you 5 stars or a Thanks?!

Mathematics
1 answer:
FrozenT [24]2 years ago
5 0

Answer:

4) 120π cm^2

5) 56π cm^2

6) 32π cm^2

Step-by-step explanation:

Surface Area of Cylinder = 2πr^{2} + (2πr)(height)

(will use variable h for height)

4)

diameter = 8 cm

r = 0.5(diameter) = 0.5(8) = 4 cm

height = 11 cm

2π4^{2} + (2π)(4)(11)

= 2π(16) + 2π(44)

= 32π + 88π

= 120π cm^2

5)

diameter = 8 cm

r = 0.5(diameter) = 0.5(8) = 4 cm

height = 6 cm

2π4^{2} + (2π)(4)(6)

= 2π(16) + 2π(12)

= 32π + 24π

= 56π cm^2

6)

diameter = 6 cm

r = 0.5(diameter) = 0.5(6) = 3 cm

height = 7 cm

2π3^{2} + (2π)(3)(7)

= 2π(9) + 2π(7)

= 18π + 14π

= 32π cm^2

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