the lateral surface area of a cone is 558pi cm^2. The radius is 18cm. Find the slant height to the nearest tenth.

Question

17.1
16.4
31.0
11.6

Answer 1

you know lateral area of cone = π r l, where both SA and r are known, l is the slant height
π(18)l = 558π
l = 558/18 = ....

Answer 2

31!
Thank You!!!