Hi,

You need to use a calculator or find tables of trigonometric functions. Your computer may have a calculator. You can also use the calculator at Google. If you type sin(10 degrees) into Google's search engine it will respond

sin(10 degrees) = 0.173648178

You need to ensure that the calculator is operating in degrees and not radians. For example if you enter sin(10) into Google it returns the sine of 10 radians.

I hope this helps,
Penny