Question

What shape is made by rotating the triangle around line M?

Cylinder or cone?
Radius of 5 or Diameter of 5?

Answer 1

A cone with radius = 8

Explanation:

If you spin the triangle around to make a 3D object it would make a cone because of the point on top. If you looked at this cone from top down to make a circle, it would have a radius of 8 and not a diameter of 8 because the diameter would be 16.