A circular pen has an area of 64pi square yards. What is the circumference of the pen? Give your answer in terms of pi

2 thoughts on “A circular pen has an area of 64pi square yards. What is the circumference of the pen? Give your answer in terms of pi<br />”

1. Answer:

   hey here is your answer

   pls mark I as brainliest

   so here we go

   Step-by-step explanation:

   so now here area of circular pen=64 pi square

   so now area of circular pen=area of circle ie

   ie 64 pi =pi r square

   so now,,

   pi on either sides will get eliminated

   so r square=64

   taking square root in both sides we get

   r=8 or r=-8

   but as dimensions length radius are never negative r=-8 is absurd

   thus r=8 (1)

   so now circumference of circular pen =circumference of circle

   =2×8×pi from (1)

   ie 16 pi yard

   so circumference of circular pen is 16 pi yard

   u can further substitute value of pi as 3.14 or 22/7

   you would get 50.2

   so I hope you now understood how to deal with such sums

   Reply

2. Given :– A circular pen has an area of 64pi square yards. What is the circumference of the pen? Give your answer in terms of pi ?

   Answer :–

   Let us assume that, radius of pen is r yards .

   so,

   → Area of pen = π * r² yards²

   A/q,

   → π * r² = 64π

   → r² = 64

   → r = 8

   then,

   → Circumference of pen = 2πr = 2 * π * 8 = 16 π yards (Ans.)

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