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CDS 2022 · PYQ · Geometry · medium

ABC is a triangle right angled at B. Let D be the midpoint on AC. If BD = 6.5 cm, then what is AB² + BC² equal to?

  1. A.169 square cm✓ Correct
  2. B.196 square cm
  3. C.144 square cm
  4. D.225 square cm

Explanation

In right triangle, median to hypotenuse = half hypotenuse. So AC = 13. AB²+BC² = AC² = 169.
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