Question

what two - dimensional figure could be rotated to generate the three - dimensional solid below? 2 of 4 question equilateral triangle circle right triangle semicircle

Explanation:

When a right triangle is rotated about one of its legs (the axis of rotation), the resulting three - dimensional solid is a cone. The leg about which it is rotated becomes the height of the cone, and the other leg becomes the radius of the base of the cone.
An equilateral triangle, when rotated, does not form a cone. A circle, when rotated about a diameter, forms a sphere. A semicircle, when rotated about its diameter, forms a sphere.

Answer:

Right triangle