Please i need help. I tried using Math.cos(30), the value returned was not the same as that of the mathematical table of cosine, which is 0.8660. Pls I need urgent help.

Originally Posted by gidmedico

Please i need help. I tried using Math.cos(30), the value returned was not the same as that of the mathematical table of cosine, which is 0.8660. Pls I need urgent help.

You received an answer to this question three days ago; the degrees must be converted to radians, and in case it's too much trouble to Google the method for so doing:

Math.cos( 30 * Math.PI / 180 );