Question

How do l do this I’m so confused

Answer 1

`967.6cm^(2) (1 d.p)`

Explanation:

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

Given from the question, r = 7 cm and h = 15cm

Lets Substitute r and h into the formula to find the Total Surface Area of the cylinder.

Total Surface Area of Cylinder =
`2\pi (7)(15)+2\pi (7)^(2) \\=210\pi +98\pi \\=308\pi cm^(2) \\=967.6cm^(2) (1 d.p)`