CPM Homework Banner
8-98.

You learned in an earlier lesson how to classify an angle by comparing it to a right angle. Find the measure of each angle below and classify it according to its measure.  Homework Help ✎

  1. What is the measure of half of a right angle?

    Remember that a right angle is .
    Thus, to find the measure of half a right angle, we must divide by .

diagram

  1. If the angle at right is made with a right angle added to half of a right angle, what is its measure?

    In part (a), you found the measure of half a right angle.
    Now you must add your answer from part (a) to to find the measure of a right angle added to half a right angle.

diagram

  1. Suppose a right angle is divided into three equal angles as shown at right. What is the measure of each angle?

    Similar to part (a), you must divide by to find the measure of a third of a right angle.

diagram