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1 year ago

Surface Area Of Cylinders Please show work It would make my year if you helped

Mathematics

2 answers:

Nady [450]1 year ago

8 0

Answer: Answer:

1st cylinder: 3541.9 square mm

2nd cylinder: 439.6 square cm

jeka941 year ago

7 0

Answer:

1st cylinder: 3541.9 square mm

2nd cylinder: 439.6 square cm

Step-by-step explanation:

$s = 2\pi r^{2} + 2\pi rh\\s = 2(3.14)(12)^{2} + 2(3.14)(12)(35)\\s = 6.28(144) + 6.28(420)\\s = 904.32 + 2637.6\\s = 3541.92\\s = 3541.9$

Second cylinder.

$s = 2\pi r^{2} + 2\pi rh\\s = 2(3.14)(7)^{2} + 2(3.14)(7)(3)\\s = 6.28(49) + 6.28(21)\\s = 307.72 + 131.88\\s = 439.6$

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