I need the answer from the question

When turned about its axis of rotation, which shape could have created this three-dimensional object?

In the triangles, bc =de and ac fe. if the mzc is greater than the mze, then ab isdfelth

One of every 20 customers reports poor customer service on your company’s customer satisfaction survey. you have just created a new process that should cut the number of poor customer service complaints in half. what percentage of customers would you expect to report poor service after this process is implemented? 1.) 5% 2.) 10% 3.) 2% 4.) 2.5%