The formula for the circumference of a circle is c = 2r, where r is the radius and c is the circumference. the equation solved for r is r = .
find the radius of a circle that has a circumference of 16.

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?