Trigonometry Examples

Convert from Radians to Degrees (11pi)/9rad
11π9rad11π9rad
Step 1
To convert radians to degrees, multiply by 180π180π, since a full circle is 360°360° or 2π2π radians.
(11π9)180°π(11π9)180°π
Step 2
Cancel the common factor of ππ.
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Step 2.1
Factor ππ out of 11π11π.
π119180ππ119180π
Step 2.2
Cancel the common factor.
π119180π
Step 2.3
Rewrite the expression.
119180
119180
Step 3
Cancel the common factor of 9.
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Step 3.1
Factor 9 out of 180.
119(9(20))
Step 3.2
Cancel the common factor.
119(920)
Step 3.3
Rewrite the expression.
1120
1120
Step 4
Multiply 11 by 20.
220
Step 5
Convert to a decimal.
220°
 [x2  12  π  xdx ]