### Home > CC2 > Chapter Ch8 > Lesson 8.3.4 > Problem 8-98

You learned in an earlier lesson how to classify an angle by comparing it to a

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 divideby .

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) toto find the measure of a right angle added to half a right angle.

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.