A cone has radius 9 and height 12. A frustum of this cone has height 4. What are the radii of the bases of the frustum? (Two answers for radii)

Prove the converse of the pythagorean theorem using similar triangles. the converse of the pythagorean theorem states that when the sum of the squares of the lengths of the legs of the triangle equals the squares length of the hypotenuse, the triangle is a right triangle. be sure to create and name the appropriate geometric figures.