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OpenStudy (smurfy14):
The concentric circles on an archery target are 6 inches apart. The inner circle (red) has perimeter of 37.7 in. What is the perimeter of the next-largest (yellow) circle?
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OpenStudy (mertsj):
Find the radius of the inner circle.
OpenStudy (mertsj):
Can you do that?
OpenStudy (smurfy14):
no :/ idk how to do it
OpenStudy (mertsj):
The circumference formula is C = 2pi(r) Replace C with 37.7 and solve for r
OpenStudy (smurfy14):
ok r=6.0 what next?
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OpenStudy (mertsj):
The problem says that the circles are 6 inches apart so the next bigger circle must have a radius of 12. Would you agree?
OpenStudy (smurfy14):
so then the final answer would be 75.4?
OpenStudy (mertsj):
Good job!!
OpenStudy (smurfy14):
cool thanks
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