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In triangle ABC, angle A = 80°, angle B = 60°, angle C = 40°. Which is the longest side?

Class 9Inequalities in a TriangleGeometry — Triangles
  • ABC
  • BCA
  • CAB
  • DAll equal

Step-by-Step Solution

The longest side is opposite the largest angle. Largest angle is A (80°), and the side opposite A is BC. So BC is longest.
Answer: A) BC

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