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Vedmedyk [2.9K]
3 years ago
6

Find the surface area of a cylinder with a base radius of 4 m and a height of 9 m.

Mathematics
2 answers:
Semenov [28]3 years ago
7 0

Answer:

326.56 m²

Step-by-step explanation:

A = 2πrh+2πr²

    = 2*3.14*4*9 +2*3.14*4²

     =326.56 m²

andrey2020 [161]3 years ago
6 0

Answer: 326.56m^2

Step-by-step explanation:

The surface area of a cylinder is calculated by 2πrh+2πr2, where π is a constant, given as 3.14; h is the height, given as 9m and r is radius, given as 4m.

Therefore, rh = 4 x 9= 36m

while r^2 =4×4 = 16m

Slot the values into the formula:

2 (3.14). (36) + 2 (3.14) 16

= (6.28 x 36 )+( 6.28 x16)

=226.08 + 100.48

=326.56m^2

I hope this helps.

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Varvara68 [4.7K]

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Step-by-step explanation:

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