Because they are both triangles and they are both 3 dimensional!
It could be a cone
it has 13 triangles
no triangles
There are no triangles.
None.
You can approximate the surface area by lots of triangles (base of the triangle on the base of the cone, and tip of the triangle at the tip of the cone), and analyze what happens when the triangles get narrower and narrower.
ice cream cone is the easy-est one i know ice cream cones are cones not triangles
Because they are both triangles and they are both 3 dimensional!
It could be a cone
there are 27 triangles in a triangle
There are 15 triangles in a 17-agon
15 triangles
15 triangles!!!!!!!!!!
it has 13 triangles
no triangles
There are no triangles.