Originally Posted by

**Zakir** I have had some question on trig and i could easily find the lines like e.g. whats the size of A-B

However when im doing this i either have to do SIN the angle ,TAN thhe angle,COS the angle.

But what happens if there is no angle.

This is what i do..

Firstly lets say

the angle is called "alpha" and we are using tangent aand opposite,

so we use TAN

next i did is

TAN "alpha" = lets say the sides are 6 which is the opposite and 3 the tangent

all i did was TAN "alpha" = 6/3

Now i did this on my calculator.

INVERSE TAN 3

iam shure i did everythign correct apart from last part so can someone explain please.

Thank you.