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Which statement is incorrect for a square-root spiral?

Answer and explanation

Correct answer: Every hypotenuse is always a whole number.

The governing properties of a square-root spiral are that each new triangle is right-angled, a unit perpendicular is added at every stage, and the hypotenuses are √1, √2, √3, √4, and so on. These lengths are not all whole numbers. For example, √1 = 1 and √4 = 2 are whole numbers, but √2, √3, and √5 are irrational and therefore not whole numbers. Consequently, option D is the incorrect statement. Options A, B, and C describe the actual construction: the right angle permits use of the Pythagorean theorem, the added side has unit length, and the resulting hypotenuse sequence represents successive square roots.

Related tags

Number-SystemsSquare-Root-SpiralConcept-CheckSquare Root SpiralNumber SystemsMathematicsClass 9 Mcq

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