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Railways PYQCBT 1 2020

RRB NTPC · Question 1

Triangle ABC is an isosceles triangle in which ∠C = 90°. If AC = 8 cm, find AB.

  1. 6 cm

  2. 8√2 cm

  3. 10 cm

  4. 8 cm

Show answer & explanation

Answer: (B) 8√2 cm

Explanation

With ∠C = 90° in an isosceles triangle, AC = BC = 8 cm and AB is the hypotenuse: √(8² + 8²) = 8√2 cm.