Trigonometry Examples

$\frac{2 π}{4}$

Step 1

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

$(\frac{2 π}{4}) \cdot \frac{180 °}{π}$

Step 2

Cancel the common factor of $π$ .

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Step 2.1

Factor $π$ out of $2 π$ .

$\frac{π \cdot 2}{4} \cdot \frac{180}{π}$

Step 2.2

Cancel the common factor.

$\frac{π \cdot 2}{4} \cdot \frac{180}{π}$

Step 2.3

Rewrite the expression.

$\frac{2}{4} \cdot 180$

Step 3

Cancel the common factor of $4$ .

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Step 3.1

Factor $4$ out of $180$ .

$\frac{2}{4} \cdot (4 (45))$

Step 3.2

Cancel the common factor.

$\frac{2}{4} \cdot (4 \cdot 45)$

Step 3.3

Rewrite the expression.

$2 \cdot 45$

Step 4

Multiply $2$ by $45$ .

$90$

Step 5

Convert to a decimal.

$90 °$