Question

Which number is rational?

StartRoot 2 EndRoot
Pi
StartRoot 10 EndRoot
StartRoot 16 EndRoot

Answer 1

`√(16)=4`

Explanation:

Only the square roots of perfect squares are rational. 16 = 4², so its root is rational. The other numbers given are irrational.

√16 = 4 . . . . is rational

Answer 2

StartRoot 16 EndRoot

Explanation:

sqrt(16) = 4

Which is rational