Activity: contouct the square foot spical! steps or points
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Mark a center point O.
From point O, draw a horizontal line OA of length 1 cm.
From point A, draw a perpendicular line AB of length 1 cm.
Join OB, here OB = √2.
Now, from point B, draw a line perpendicular to OB (Use set squares) of length 1 cm. ...
Join OC, here OC = √3.
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