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      Question

      If 88 children are sitting around a circular

      ground at an equal interval of 4 feet, find the area of the ground.
      A 352 sq.ft Correct Answer Incorrect Answer
      B 3194 sq.ft Correct Answer Incorrect Answer
      C 3256 sq.ft Correct Answer Incorrect Answer
      D 9,856 sq.ft Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      Circumference of the ground = (88 x 4) feet โŸน2`Pir` [if gte msEquation 12]>โŸน2ฯ€ r [if !msEquation]--> [endif]--> = 88 × 4 โŸน r = `(88 xx 4 xx 7)/(2 xx 22)` [if gte msEquation 12]> 88ย  ร— 4ย  ร— 7 2ย  ร—ย  22 [if !msEquation]--> [endif]--> = 56 feet ∴ A rea of the ground = `Pir^(2)` = `(22 xx 56 xx 56)/7` [if gte msEquation 12]> 22ย  ร— 56 ร— 56 7 [if !msEquation]--> [endif]--> = 9,856 sq.ft

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