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To construct \(\sqrt{13}\) on the number line, if the perpendicular sides of a right triangle are 3 units and 2 units long, what is the length of its hypotenuse?

Answer and explanation

Correct answer: \(\sqrt{13}\)

By the Pythagorean theorem, hypotenuse² = (perpendicular side)² + (base)². Thus, hypotenuse = \(\sqrt{3^2+2^2}=\sqrt{9+4}=\sqrt{13}\), so option C is correct. Option B results from subtracting the squares, which is not applicable when finding the hypotenuse. Exam tip: in a right triangle, the hypotenuse is the longest side, and its squared length equals the sum of the squares of the other two sides.

Related tags

Number Line ConstructionPolynomialsPythagorean TheoremSquare RootsRepresenting Real Numbers On The Number LineMathematicsClass 10 Mcq

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