1. Choose two of the five slides to complete. 2. Use the protractor on the slide to measure all the possible angles. - remember to line up the vertex and the baseline - you may adjust the size of the tool to see the measurement clearly. 3. Measure the angle using the protractor on the slide. - double-check your measurement. 4. Use the and/or tool to mark and label your angle. 5. If you have time, you may complete another slide or delete the unused slides. 6. When you are done to submit.