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If a perpendicular of length 1 unit is drawn at the end of a hypotenuse of length √2, what will be the length of the next hypotenuse?

Answer and explanation

Correct answer: √3

The governing concept is the construction of a square-root spiral using the Pythagorean theorem. At this stage, the existing hypotenuse of length √2 becomes one leg of a new right triangle, and the newly drawn perpendicular is the other leg of length 1. If H is the next hypotenuse, then H² = (√2)² + 1² = 2 + 1 = 3. Since a length is positive, H = √3. Therefore option B is correct. Option A is only the previous hypotenuse. Option C would incorrectly add 4 or treat the lengths without squaring, while option D would add an extra unit to the squared result. The theorem must be applied to the squares of the perpendicular sides.

Related tags

Square Root SpiralPythagorean TheoremIrrational LengthsRight TriangleNumber SystemsMathematicsClass 9 Mcq

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