2. Reflections
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The angle we are looking for is between the rays that start at O and pass through the points B and D.
Angle Measure: 50^(∘)
Classification: Acute
Let's first identify the angle we are looking for. The symbol ∠ BOD refers to the angle found between the rays that start at O and pass through the points B and D.
Examining the protractor, we can see that the ray traveling through B passes through 0^(∘). Also, the ray traveling through D passes through 50^(∘). By the Protractor Postulate, the measure of ∠ BOD is the difference between 50^(∘) and 0^(∘). m ∠ BOD: 50^(∘)-0^(∘)=50^(∘) Now, we can classify the angle using its measure.
Type | Measure |
---|---|
Acute | 0^(∘) |
Right | m=90^(∘) |
Obtuse | 90^(∘) |
Straight | m=180^(∘) |
Because our angle is 50^(∘), we know that it is acute.