Question

The shape shown on the coordinate plane is rotated about the y-axis.

What is the shape of the solid created by the rotation?

Answer 1

I think it should still be a triangle

Answer 2

Cone, radius = 4, height = 7

Explanation:

The point (4, 0) will spin around the y-axis, forming the base of the cone. The point (0, 7) will not move--it's point of the cone.