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aniked [119]
3 years ago
15

A right cylinder has a radius of 3 and a height of 12. what is its surface area?

Mathematics
2 answers:
tester [92]3 years ago
8 0

The surface area is 90pi

Katarina [22]3 years ago
3 0

Answer:

Surface area of cylinder = 282 .6 square units.

Step-by-step explanation:

Given : A right cylinder has a radius of 3 and a height of 12.

To find : what is its surface area

Solution : We have given that  radius =  3

Height = 12.

Surface area of cylinder =  2πr ( r +h)

Surface area of cylinder =  2 *3.14 * 3 ( 3 +12)

                                        = 18.84 (15)

Surface area of cylinder = 282 .6 square units.

Therefore, Surface area of cylinder = 282 .6 square units.

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gizmo_the_mogwai [7]

Answer:

SA=390

Step-by-step explanation:

9*14=126

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252+84+54=390

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Archy [21]

Answer:

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Sam's calculation:

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Bruno's calculation:

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Bruno is correct. When going from a larger unit to a smaller unit you need to divide

We will divide a larger value by a smaller value to get the smaller units

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3 years ago
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Dahasolnce [82]

Answer:

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Step-by-step explanation:

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3 years ago
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<u>-TheUnknownScientist</u><u> 72</u>

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