Question

HELP MEEEE PLZ.
i need to Find the surface area and volume

Answer 1

A ≈ 494.80
`mm^(2)`

V = 827.02
`mm^(3)`

Explanation:

height ( h ) = 13 mm

radius ( r ) =
`(9mm)/(2)` = 4.5 mm

Surface area =
`2\pi rh + 2\pi r`

= 2π(4.5)(13) + 2π(4.5)

≈ 494.80
`mm^(2)`

Volume =
`\pi r^(2) h`

=
`\pi (4.5)^(2) (13)`

= 827.02
`mm^(3)`