Being able to identify and compare angle can help us in this lesson. Let's try this problem to review.
Which of these angles is larger?
Angles can be compared by how large the turn is between the lines.
Let's see how we can use angles we know to estimate other angles.
Which angle is equal to 45 degrees?
If we remember some important angles, we can use those to estimate other angles.
Estimate, measure and compare angles using degrees. Construct angles using a protractor