3 years ago

(I will give brainliest, a thanks, 30 points, and 5 stars if you can answer these 2 questions)

Mathematics

1 answer:

dimulka [17.4K]3 years ago

4 0

Answer:

1. 9 pi, 2. 121 pi

Step-by-step explanation:

The formula for circumference is pi d. So for the first question the radius would be three. The you do pi r ^2 for area so 3 times pi squared. Which is 9 pi. For the second you will do the same thing you will do 22 pi divided by 2 which is 11 pi then you will square 11pi and get 121 pi

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