3) 3(8b + 3)
4) 57
I’m pretty sure that this is the answer
The <u>second image</u> in the diagram is a hyperbola. As can be seen, the plane cutting the cone can be at any angle but never equal to the slant angle of the cone. This has a very important implication. The plane cuts both cones of the double-napped cone. The third double-napped cone of Figure 3 shows two hyperbolas.
We know, C = 2πr
So, c = 2 * 22/7 * 14
c = 2 * 22 * 2
c = 88 cm
In short, Your Answer would be: 88 cm
Hope this helps!