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Maya drew angle ABC. She used the same rays that Mrs. Dewey used to draw angle ABC.
- Are Mrs. Dewey's ∠ABC and Maya's ∠ABC the same size? Explain your thinking.
- How are the two angles related to each other?
We measure the amount of turning in angles by degrees. Larger angles have larger
degree measures. If you turn all the way around in a circle, you have turned 360° (read as “360 degrees”). The little circle (°) is a symbol for the word degree.
One degree (1°) of turning is only 
of the way around a full circle.