Find the diameter and radius when given the circumference. c = 62.8

Well, just looking at this problem we know 3 formulas that will help us. Firstly we have C (The Circumference) is Equal to 2π Times the Radius, r.

In Equation form that looks something like this:

C=2πr

We also know that the radius is half of the diameter, r=D/2  or D=2r

So, if C=62.8, then 62.8=2πr must also be true.

By doing some quick re arranging we get to the equation r=62.8/2π

This equation gives us 9.99, Which is essentially 10.

Now that we know that r=10, we can find that diameter, D=2r, is Equal to 20.

Therefore, your answers are

Radius = 10

Diameter = 20

Circumference = 62.8 (Given)

If there are any questions about anything I did please feel free to ask more questions and I will respond ASAP!

hey! so 1 (25) out of 4 (100) is 25 so your answer is 25%. it's like quarters!