How Do I Use This Activity?

This activity allows the user to practice important angle vocabulary.

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Controls and Output

• The program provides an illustration of two parallel lines. You can choose whether the lines are cut by one or two transversals. One transversal is shown below:
  
• Examine the given information that appears below the drawing. It displays the measure of one of the angles in the diagram and gives which lines are parallel to each other.

• The program will ask you to identify two angles as either obtuse, acute, or right. Use the pull-down choices to answer:
  

• The program then asks that you specify a relationship between the two angles. Once again, use the pull-down choices to choose either vertical, adjacent, alternate-interior, alternate-exterior, same-side interior, same-side exterior, corresponding, or none of the above:
  

• After you believe you have correctly identified the three answers, click the Check Answer button to see if you are correct:
  

• In order to get a new question, click the New Angles button:
  

• The Keep Score button is located at the bottom of the activity. Clicking this button will display a pop-up window which then begins recording how successful you are at answering the questions. Note that the Keep Score button will only keep track of your score after it has been clicked.

  While this window is active and keeping track of your score, the label on the button will say Show Score. To keep the window active, either click on the Back to Applet button or click back in the main window (on mac OSX, Internet Explorer you need to click on the title bar of the main window or the Back to Applet button).