Question

The surface area of a cone is given by the formula S = pi*t + pi * r ^ 2 the formula for LSlant height ( l = S - r ^ 2 l = S + r ^ 2 0 l = s/pi - r ^ 2 0 l = 5/pi + r ^ 2

Answer 1

Answer: l=s/3.14-r2

Explanation:

did it on Edg and the 3.14 i’d supposed to be the symbol for pi hope it helps :)

Answer 2

`l = (S)/(\pi r) - r`

Explanation:

Given the surface area of a cone expressed as S =
`\pi r^(2) +\pi rl` where r is the radius of the cone and 'l' is its slant height. To find the slant height from the formula, we will make l the subject of the formula as shown;

`S = \pi r^(2) + \pi rl\\S = \pi r (r + l)\\(S)/(\pi r) = r+l\\l = (S)/(\pi r) - r\\`

The final expression gives the value of the slant height.