Question

(square root of) 45 is between what whole numbers?

A: 6 and 7
B: 7 and 8
C: 8 and 9

Answer 1

Look for the closest perfect squares around it. Six squared is 36. Seven squared is 49. Eight squared is 64. Nine squared is 81. Since 42 is between 36 and 49, its square root would be between six and seven, A

Answer 2

Option A) 6 and 7

A is the answer since the square root of 45 is 6.71.