The angle we are looking for is between the rays that start at O and pass through the points A and D.
Angle Measure: 130^(∘) Classification: Obtuse
Practice makes perfect
Let's first identify the angle we are looking for. The symbol ∠ AOD refers to the angle found between the rays that start at O and pass through the points A and D.
Examining the protractor, we can see that the ray traveling through A passes through 0^(∘). Also, the ray traveling through D passes through 130^(∘). By the Protractor Postulate, the measure of ∠ AOD is the difference between 130^(∘) and 0^(∘).
m ∠ AOD: 130^(∘)-0^(∘)=130^(∘)
Now, we can classify the angle using its measure.
