2 years ago

Brainliest* show work also and please do all 3

Mathematics

1 answer:

Katen [24]2 years ago

4 0

Answer:

#7 = 53.41

#8 = 18.85

#9 = 87. 96

Step-by-step explanation:

The formula for Circumfrance of a circle is: C=2 π r

So lets do #7:

17/2 (the radius is 1/2 of the diameter)

R= 8.5 (now plug in)

C= 2 π 8.5

C=17π

Now repeat on 8 and 9

C= 2 π 3

C=6π

c= 18.85

C= 2 π 14

C= 28π

C= 87.96

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