Two sides of a right triangle ABC (C is the right angle) are given. Find the indicated trigonometric function of the given angle.
5) Find cosA when a=7 an b=2
6) Find tanA when a=7 and b=6
The right angle is always opposite the longest side (hypoteneuse).
So in this case, the hypoteneuse would be c, right angle would be C.
The other two angles A and B are oppsite sides a and b respectively. The positioning of these two sides is irrelevant because you're basically just flipping or turning the same triangle.