Answer:
B) Square root of 45 and C) Square root of 30, are both irrational numbers, because they aren't perfect squares.
Explanation:
A square root can be defined as, "a factor of a number that, when multiplied by itself, gives the original number."
For example: 8 squared (8^2) is the same as 8 × 8 , which equals 64 , so the square root of 64 is 8. Since 64 is a perfect square, then it makes it a rational number.
Hope this makes sense to ya :)
