Question

Which irrational number can be added to π to get a sun that is rational?

A. 1
π

B. -1
π

C. -π

D. π

Answer 1

The answer is C.

Adding any positive value to
`\pi` won't really make
`\pi` into a rational number, so the way you have to do it add the negative self, -
`\pi` to make it into 0. Any number plus its negative value would result in 0, which is a rational number.