Which type of cross section is formed when the cone is intersected by a plane containing the axis of rotation?

Well we need to see the axis of rotation there must be a picture or something to depend on since you provided very few information or whatsoever.

If your picture of information has the cone cut from the middle then it's a circle and if it's from top to bottom it's an isosceles triangles.

Here's a picture I found on the internet to help you understand it better ^-^

Sorry if I didn't help but Good luck!

step-by-step explanation:

|ab| = 1.4 = 4

h = 1.4 = 4

a(abc) area = 4.4 = 16/2 = 8

area of abc = 8 cm^2

good luck ! ; )

correct answers below: