3 years ago

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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