Is the triangle angle sum theorem true on the surface of a cylinder, sphere, and right rectangular prism?

Look at the example below which shows how the product property of radicals is used to simplify a radical. use the product property of radicals to simplify the following radical.

Solve for x -3+3b> 9a: ) x> 4b-9/3b: ) x< 9-4b/3c: ) x< -4b+9/-3d: ) x> 4b+9/-3

If u answer this u will get good luck for a year