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cluponka [151]
3 years ago
15

Will give brainliest answer

Mathematics
1 answer:
makvit [3.9K]3 years ago
5 0

Answer:

28 . 26cm

Step-by-step explanation:

First find the radius

d = 2r \\ 9 = 2r \\  \frac{9}{2}  =  \frac{2r}{2}  \\ r = 4.5

Now find the CIRCUMFERENCE

c = 2\pi \: r \\  = 2 \times \pi \times 4.5 \\  = 9 \times \pi \\  = 28.26

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