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 E.
Angle Measure: 20^(∘)
Classification: Acute
Let's first identify the angle we are looking for. The symbol ∠ BOE refers to the angle found between the rays that start at O and pass through the points B and E.
Examining the protractor, we can see that the ray traveling through B passes through 0^(∘). Also, the ray traveling through E passes through 20^(∘). By the Protractor Postulate, the measure of ∠ BOE is the difference between 20^(∘) and 0^(∘). m ∠ BOE: 20^(∘)-0^(∘)=20^(∘) 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 20^(∘), we know that it is acute.