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 sets of parallel lines:
  

• 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 adjacent, vertical, alternate-interior, alternate-exterior, 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: