Added by Clio on June 11, 2000 at 18:29:01:
In Trig, it helps to rememebr the equasions by SohCahToa which means Sin (Soh) is Opposite divided by Hypothesis; Cosin (Cah) is Adjacent divided by Hypothesis; Tan (Toa) is Opposite divided by Adjacent.
Heres an example for Tan (if the degree is 10* and the opposite is 48cm)
Tan 10*= o/a
Tan 10*= 48/a
Tan 10*a= 48/a x a
Tan 10*a= 48
Tan 10*=0.158384440324536293838883092694366
or 0.1583844
Tan 10*A/0.1583844a = 48/0.1583844
A=303.060149863244107374211096547387
=303.06015
Approximatly.