Question

How many meters of a cloth 2.5m wide will be required to make a conical tent whose base radius is 7m and 24 m

Answer 1

Considering 24m as the slant height...
The area required to make the conical tent is: pi x r x l
which is = pi x 7 x 24
             = 168 pi
And so area of rectangular cloth is 168 pi 
so the length required= 168 pi/ 2.5
                                  = 211m (3sf)

Hope this helps

Answer 2

Considering 24m as the slant height...

The area required to make the conical tent is: pi x r x l

which is = pi x 7 x 24

             = 168 pi

And so area of rectangular cloth is 168 pi 

so the length required= 168 pi/ 2.5

                                  = 211m (3sf)