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### Tangent Half-Angle Formula 508 Views

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**Description:**

Mosquitos need their caffeine, just like the rest of us. Wouldn't think zipping around and stinging people all day long sap
*your*
energy?

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**Common Core Standards:**

#### Transcript

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This video can run circles around other videos about circles. Sir Cumference, of Round Table fame, explains all the properties of… well, circles....

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