Answer :

Answer: 5 is the radius because it is half of 10 in the circle

Step-by-step explanation:

whereisshe

Answer:

Circumference is 31.4.

Area is 78.4^2.

Step-by-step explanation:

Circumference = pi times diameter.

3.14 times 10 is 31.4.

Area = 1/4 pi diameter squared.

10^2 = 100

100 times 3.14 = 314

314 times 1/4 is 78.5.

I hope this helps you!

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