Question

please solve it fast​

Answer 1

Answer:

$\textbf{between 12 m and 13 m}$

12^2=144

13^2=169

12.5^2=156.25

12.1^2=146.41

so the length should be between 12.1 to 12.5

12.2^2=148.84

12.3^2=151.29

so it should be between 12.2 and 12.3

that is 12.24

so approximately 12.24^2=150

length = 12.24 m

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