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What is the main idea of a square root spiral in one sentence?

Answer and explanation

Correct answer: Making successive square-root lengths using right triangles

A square root spiral is a geometric construction based on successive right triangles. At each stage, a segment of length 1 is drawn perpendicular to the previous hypotenuse. If the previous hypotenuse is √n, the Pythagorean theorem gives the next one as √((√n)² + 1²) = √(n + 1). Repeating this process produces lengths representing successive square roots, such as √2, √3, √4, and beyond. Therefore option A states the central idea accurately. The construction is not a circle-only activity, so B is incorrect. It may help illustrate number concepts but does not merely calculate decimals, making C incorrect. It produces positive lengths, not only negative numbers, so D is also incorrect.

Related tags

Number-SystemsSquare-Root-SpiralGeometric-ConstructionSquare Root SpiralNumber SystemsMathematicsClass 9 Mcq

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