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natali 33 [55]
1 year ago
13

Back at it again, no idea what I'm doing. Someone please help and explain ​

Mathematics
1 answer:
tester [92]1 year ago
8 0

<u>Given:</u><u>-</u><u> </u>

  • Height of Cylinder = 21ft.
  • Radius of Cylinder = 7ft.

<u>To </u><u>Find</u><u> </u><u>:</u><u>-</u>

  • Surface area of Cylinder

<u>Solution</u><u> </u><u>:</u><u>-</u><u> </u>

  • Formula for finding surface area of Cylinder = 2πr(r+h)

<u>Putting</u><u> the</u><u> known</u><u> values</u><u> </u><u>,</u><u> </u>

<u>Surface</u><u> Area</u><u> </u><u>=</u><u> </u>2×3.14×7(7+21) ft.²

= <u>1230.88 ft</u>.²

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