Fill in your answers on the Chpt 15 Worksheet. To answer the questions that follow, use the mouse to zoom and move the models. Use the Chime pop-up menu to change display styles and to go to 2-D Rendering. For help with model manipulation, see the Chime Tutorial or review the Mouse Controls. You may install Chime if it is not already installed. 

Those parts of an exercise which have on-screen answers are identified by an asterisk; e.g., 1.1*. You should do these problems first, check your answers at the bottom of the page, and then do the rest.