Question

Work out the surface area of this cylinder
8.2 cm
17.5 cm

Answer 1

Answer: 1324.12 sq. cm.

Explanation:

A=2πrh+2πr2

A = 2π x 8.2 x 17.5 + 2π x 8.2^2

A = 2π x 143.50 + 2π x 67.24

A= 1324.12

Answer 2

SA = 1324.1 cm²

Explanation:

Surface Area of Cylinder =
`2\pi rh+2\pi r^2`

Where r = 8.2 cm, h = 17.5 cm

=> SA =
`2(3.14)(8.2)(17.5)+2(3.14)(8.2)^2`

=> SA =
`901.6+2(3.14)(67.24)`

=> SA = 901.6 + 422.5

=> SA = 1324.1 cm²