Question

I need help with these two questions. I will mark brainliest

Answer 1

Answer:

5. A= pi $r^{2}$                             r=radius              d=diameter

   C= pi 2r/ d

   A= pi $6^{2}$

   A= 36pi

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    C=pi 2(6)/12

    C=12pi

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6. A=pi $4^{2}$

   A=16pi

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  C=pi 2(4)/8

   C=8pi

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Sorry I couldn't find the symbol for pi