The formula for the surface area, S, of a cone is shown below. solve the formula for the length l.

Answer:
l = [tex]\frac{S-\pi r^2}{\pi r}[/tex]
Step-by-step explanation:
S = πr² + πrl ( subtract πr² from both sides )
S - πr² = πrl ( isolate l by dividing both sides by πr )
[tex]\frac{S-\pi r^2}{\pi r}[/tex] = l
Answer:
[tex] l = \dfrac{S - \pi r^2}{\pi r} [/tex]
Step-by-step explanation:
[tex]S = \pi r^2+\pi rl[/tex]
[tex]\pi r^2+\pi rl = S[/tex]
[tex]\pi rl = S - \pi r^2[/tex]
[tex] l = \dfrac{S - \pi r^2}{\pi r} [/tex]