Verified Answer :

  • - Solve:


    \(2*r*p\)

    R=Radius
    P=Pi (Approximate (≈) 3.14, or \(\frac{22}{7}\))

    Okay so it tells us our radius: 2.8cm and we know out pi: 3.14 so now we plug in:
    \(2*2.8*3.14\)
    =    17.593

    Final answer:     17.593 (If needed, you can round this to 17.6)

The equation for circumference is c= (2)pi(r)
If you fill it out, it becomes c = (2)pi(2.8)
Multiply to solve.
Circumference: 17.59cm rounded to nearest hundredth.

*Never use 3.14 as pie, always solve on calculator. 3.14 itself is not pi!!

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