Maths-
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Easy

Question

Find the lateral surface area of a regular pyramid with a triangular base if each edge of the base measures 8 inches and the slant height is 5 inches.

  1. 60inch
  2. 20inch
  3. 30inch
  4. 80inch

The correct answer is: 60inch


    The perimeter of the base is the sum of the sides.
    p=3(8)=24  inches
    L.S.A.=(1/2)(24)(5)=60  inches

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