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How do calculate sin of 20?

Updated: 4/28/2022
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Wiki User

12y ago

Best Answer

The easiest way to find the value of sin(20) is to use a scientific calculator or a computer.

But if you want to actually calculate it, you could try the following. First you need to make sure that the angle is expressed in radians. 180 degrees = pi radians so 20 degrees =20*pi/180 = pi/9 radians. Call this value x.

Then find x/1! - x3/3! + x5/5! - x7/7! + ...

The further you go, the more accurate your result.

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12y ago
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