Question

A right cylinder has a radius of 6 m and a surface area of 84 m². Find the surface area of a similar cylinder with a radius of 2 m.?

Answer 1

`A=72.5`

Explanation:

`h=(A)/(2pir)-r`
`h=(84)/(2pi(6))-(6)`
`h=-3.77`
ignore nigative sing
`h=3.77`
`A=2π(2)(3.77)+2π(2)^2`
`A=72.5`