Let slant height of the first cone = l
So, the slant height of the second cone = 2l
Radius of the first cone = r1
And, the radius of the second cone = r2
Curved surface area of first cone = πr1l
Curved surface area of second cone
Let slant height of the first cone = l
So, the slant height of the second cone = 2l
Radius of the first cone = r1
And, the radius of the second cone = r2
Curved surface area of first cone = πr1l
Curved surface area of second cone