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In a square root spiral, what is the length of the new perpendicular side in each new triangle?

Answer and explanation

Correct answer: \(1\)

In a square root (Theodorus) spiral, each new right triangle is constructed on the previous hypotenuse, with a new perpendicular side of \(1\) unit. By the Pythagorean theorem, the successive hypotenuses become \(\sqrt{2}, \sqrt{3}, \sqrt{4}\), and so on. Thus, \(\sqrt{2}\) and \(\sqrt{3}\) are hypotenuses at early stages, not the new perpendicular side. Exam tip: remember that the side kept fixed in every new triangle is \(1\) unit.

Related tags

Number SystemsSquare Root SpiralTheodorus SpiralPythagorean TheoremIrrational NumbersMathematicsClass 9 Mcq

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