• Math

  Circle

  Posted by Saikat on June 22, 2023 at 7:37 pm

  A railing of 288 m is required for fencing a semi-circular park. Find the area of the park.

  Aryan replied 1 year, 2 months ago 2 Members · 1 Reply
• 1 Reply

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  Aryan

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  June 23, 2023 at 2:13 pm

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  Length of boundary of the part = 288 m (given)

  Length of boundary = circumference of semi circle + diameter = pie * radius + 2 * radius

  Radius * ( pie + 2 ) = 288

  Radius = 288 / ( 22/7 +2 )

  = 288 / ( 36/7 )

  = 288 * 7/36

  = 8* 7 = 56 m

  Area of circle = pie * r^2 = 22/7 * 56 * 56 = 22 * 8 *56 = 9856 m^2

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