Question #4054

Explain the method of finding sqare root of 5.

Expert's answer

Here is the geometrical solution:

Take a rope of 3 meters. Then make four knots on it in such a way that you get 3 equal parts. Bend your rope around the second knot at right angle. You will get a right triangle with the sides 1 m and 2 m.

According to the Pythagorean Theorem, its hypotenuse is a square root from 1^{2}+2^{2}=5.

Take a rope of 3 meters. Then make four knots on it in such a way that you get 3 equal parts. Bend your rope around the second knot at right angle. You will get a right triangle with the sides 1 m and 2 m.

According to the Pythagorean Theorem, its hypotenuse is a square root from 1

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