The angle we are looking for is between the rays that start at O and pass through the points C and D.
Angle Measure: 85^(∘) Classification: Acute angle
Practice makes perfect
Let's first identify the angle for which we are looking. The symbol ∠ COD refers to the angle found between the rays that start at O and pass through the points C and D.
Examining the protractor, we can see that the ray traveling through C passes through 30^(∘). Also, the ray traveling through D passes through 115^(∘). By the Protractor Postulate, the measure of ∠ COD is the difference between 115^(∘) and 30.
m ∠ COD: 115^(∘)-30^(∘)=85^(∘)
Now, we can classify the angle using its measure.
