Precalculus Examples

$\frac{π}{12}$

To convert radians to degrees, multiply by $\frac{180}{π}$ , since a full circle is $360 °$ or $2 π$ radians.

$(\frac{π}{12}) \cdot \frac{180 °}{π}$

Cancel the common factor of $π$ .

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Cancel the common factor.

$\frac{π}{12} \cdot \frac{180}{π}$

Rewrite the expression.

$\frac{1}{12} \cdot 180$

Cancel the common factor of $12$ .

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Factor $12$ out of $180$ .

$\frac{1}{12} \cdot (12 (15))$

Cancel the common factor.

$\frac{1}{12} \cdot (12 \cdot 15)$

Rewrite the expression.

$15$

Convert to a decimal.

$15 °$

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