Trigonometry Examples

$21$

Step 1

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

$(21) \cdot \frac{180 °}{π}$

Step 2

Multiply $(21) \frac{180}{π}$ .

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Step 2.1

Combine $21$ and $\frac{180}{π}$ .

$\frac{21 \cdot 180}{π}$

Step 2.2

Multiply $21$ by $180$ .

$\frac{3780}{π}$

Step 3

$π$ is approximately equal to $3.14159265$ .

$\frac{3780}{3.14159265}$

Step 4

Convert to a decimal.

$1203.21136977 °$