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Which statement is correct for a square root spiral?

Answer and explanation

Correct answer: Each new hypotenuse gives the next square-root length in sequence

The governing idea of a square root spiral is the repeated use of right triangles and the Pythagorean theorem. Starting with a suitable unit length, a perpendicular segment of length 1 is added to the existing hypotenuse. If the old hypotenuse is √n, then the new one satisfies h² = (√n)² + 1² = n + 1, so h = √(n + 1). Thus the hypotenuses represent successive square roots such as √2, √3, √4, and so on. Option A is correct. Option B is false because the hypotenuse changes; option C is false because the triangles are right-angled, not equilateral; and option D is geometrically impossible for these constructions.

Related tags

Number-SystemsSquare-Root-SpiralPythagorean-TheoremSquare Root SpiralNumber SystemsMathematicsClass 9 Mcq

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