The angle we are looking for is between the rays that start at O and pass through the points E and D.
Angle Measure: 25^(∘) Classification: Acute angle
Practice makes perfect
Let's first identify the angle we want. The symbol ∠ EOD refers to the angle found between the rays that start at O and pass through the points E and D.
Examining the protractor, we can see that the ray traveling through E passes through 40^(∘). Also, the ray traveling through D passes through 65^(∘). By the Protractor Postulate, the measure of ∠ EOD is the difference between 65^(∘) and 40.
m ∠ EOD: 65^(∘)-40^(∘)=25^(∘)
Now, we can classify the angle using its measure.
