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Q:

In a triangle, two sides of 4 cm and 3 cm are at right angle. If the triangle is revolved along the 4 cm side, the curved surface area of the cone so formed will be

  • 1
    62.8 cm2
  • 2
    52.6 cm2
  • 3
    64. 8 cm2
  • 4
    67.6 cm2
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Answer : 1. "62.8 cm2 "

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