Question

Find the total surface area of the following cone. leave your answers in terms of PI

Answer 1

Given

height of cone = 4cm

Base radius of cone = 3cm

Find

TSA of cone

Step-by-step explanation

`l=√(4^2+3^2)=√(16+9)=5`

We know that TSA of cone is

`\begin{gathered} TSA=\pi r(r+l) \\ =\pi(3)(3+5) \\ =\pi(3)(8) \\ =24\pi cm^2 \end{gathered}`

Final Answer

`TSA=24\pi cm^2`