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In a square root spiral, what is the hypotenuse of the first right triangle made with base (1) unit and perpendicular (1) unit?

Answer and explanation

Correct answer: \(\sqrt{2}\)

The two perpendicular sides of the first right triangle are 1 unit each. By Pythagoras’ theorem, the hypotenuse is \(\sqrt{1^2+1^2}=\sqrt{2}\). \(2\) is the value of the square of the hypotenuse, not the hypotenuse itself. Exam tip: the first hypotenuse in a square root spiral is always \(\sqrt{2}\).

Related tags

Number SystemsSquare Root SpiralPythagoras TheoremRight TrianglesIrrational NumbersMathematicsClass 9 Mcq

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