Answer:
The circle's diameter is 6cm
Explanation:
A = 28.26 cm^2
D =
D = 6cm
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![\sqrt[2]{(A)/(\pi ) }](https://img.qammunity.org/2021/formulas/mathematics/middle-school/vsjon1dqhdbfqsubnazg75yo2e7l4qo4li.png)
![\sqrt[2]{(28.26)/(\pi ) }](https://img.qammunity.org/2021/formulas/mathematics/middle-school/yzl8xmxd6z4svv5mi7nc9g9b51mpzf7n2a.png)