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

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