Respuesta :

Step-by-step explanation:

In first diagram Nolan sketched it correctly because he sketched diameter as 13 units which twice the radius.

r=6.5 units

2r=13= diameter

So A=3.14*(6.5)²

In second diagram Justine sketched correctly because diameter of his circle is 8 which the radius is 4

So A=3.14*(4)²

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Answer:

I don't understand, can you explain?

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