if one leg in a right triangle is 50 and the other is 45 what are all the angles

Assuming that by "legs" you mean thew sides that aren't the hypotenuse, then just use the arctan function.

That is, you have tan(A) = 50/45 so A = atan(50/45)  (i.e. tan^-1(A))

$$\underset{\,\,\,\,^{\textcolor[rgb]{0.66,0.66,0.66}{360^\circ}}}{{tan}}^{\!\!\mathtt{-1}}{\left({\frac{{\mathtt{50}}}{{\mathtt{45}}}}\right)} = {\mathtt{48.012\: \!787\: \!504\: \!183^{\circ}}}$$

The other angle (B, say) is atan(45/50)

$$\underset{\,\,\,\,^{\textcolor[rgb]{0.66,0.66,0.66}{360^\circ}}}{{tan}}^{\!\!\mathtt{-1}}{\left({\frac{{\mathtt{45}}}{{\mathtt{50}}}}\right)} = {\mathtt{41.987\: \!212\: \!495\: \!817^{\circ}}}$$

You should check that these two sum to 90°