HOW TO FIND 30 AND 60 DEGREES FOR SIN,COS AND TAN

HOW TO FIND 30 AND 60 DEGREES FOR SIN,COS AND TAN

using one of the triangle I.e right angled triangle

opp square= hyp square - adj square

opp square = 2^2 - 1^2

opp square = 4 - 1=3

opp = root 3.

Then...

sin30 degree = 1/2 = 0.5

cos30 degree = root 3/2 = 0.8660

tan30 degree = sin30 degree/ cos30 degree = 0.5/0.8660= root 3/3 or 0.5774.

sin60 degree = root 3/2= 0.8660

cos60 degree = 1/2= 0.5

tan60 degree = 0.8660/0.5 = root 3/1= root 3