The square root of 4.2025 is
2.05
2.15
2.25
2.35
Here 4.2025 can be written as 4202510000
Now, square-root of this will be equal to √4202510000
= √41×41×5×510×10××10×10 (Using prime factorizaion method)
= 41×510×10
= 2.05
A high jump athlete recorded jumps of 2.2 m , 2.1 m , 2.05 m , 2.15 m and 2.25 m.
What was his average jump height?
The square root of 2.25 equals to