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The diameter of a circular glass lens is 8.7 centimeters. Paige uses the edge of the lens to trace a circle on a sheet of paper. What is the estimated circumference of the circle?

  1. 13.659 centimeters
  2. 27.318 centimeters
  3. 54.636 centimeters
  4. 237.6666 centimeters

Verified Answer :

You need to multiply 8.7 by 3.14.You should get 27.318

JeanaShupp

Answer: 2.  27.318 centimeters

Step-by-step explanation:

We know that the circumference of a circle is given by :-

\(C=\pi d\), where d is the diameter of the circle.

Now, the diameter of the given circle = 8.7 centimeters

Therefore, the circumference of the circle will be :-

\(C=\pi 8.7\)

Since, the estimated value of \(\pi=3.14\),

Therefore, \(C\approx(3.14) 8.7=27.318\ \text{centimeters}\)

Hence, the estimated  circumference = 27.318 centimeters.

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