The total surface area of a cone of radius r2 and length 2l,is

1.	The total surface area of a cone of radius r2 and length 2l,is
Answer» $T h e t o t a l s u r f a c e a r e a o f a c o n e o f r a d i u s \frac{r}{2} a n d l e n g t h 2 l, i s$

Discussion