Can someone answer this problem and the other i posted previously

Match the following reasons with the statements given to create the proof. 1. do = ob, ao = oc sas 2. doc = aob given 3. triangle cod congruent to triangle aob vertical angles are equal. 4. 1 = 2, ab = dc if two sides = and ||, then a parallelogram. 5. ab||dc if alternate interior angles =, then lines parallel. 6. abcd is a parallelogram cpcte

The answer is 7.2 how would you put this as money

In triangle abc, angle c is a right angle. find the value of the trig function indicated. find tan a if c = 17 and a = 8