How do you do that it does not explain

Okay, this isn't an answer but a explanation.

Step-by-step explanation:

You first look at the decimal. See where it says 0.6? Convert it to a fraction: 6/10. Reduce it. It's 3/5. There. Thats the answer. Try number 8. yourself. No. 6. You try to convert it to ?/10. Does it work? No. You then try the hundreds. Go on thill you find an answer are please say thanks!

10

step-by-step explanation:

circle area = pi * radius^2

if diameter = 10 then radius = 5

circle area = pi * 5^2

circle area = pi * 25

circle area = 78.5398163397 square units

step-by-step explanation: