Question

us right circular cylinder just encloses a sphere of radius 7cm find the curved surface area of a cylinder​

Answer 1

Answer:

Step-by-step explanation:

Radius of the base of the cylinder = Radius of sphere =acm

Height of cylinder =a+a=2acm

Now, curved surface area of cylinder =2πrh

                                                              =2π×a×2a

                                                              =4πa  

2

cm  

2