50 points please help Which is equivalent to ^3v8^1/4

Find the solutions for a triangle with a =16, c =12, and b = 63º

The reflexive property of congruence lets you say that ∠pqr ≅

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?