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OpenStudy (anonymous):
The semicircles are congruent to one another with a diameter of 6 inches. What is the perimeter of the sign? about 57 inches about 116 inches about 137 inches about 160 inches
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OpenStudy (anonymous):
OpenStudy (dumbcow):
6 semi-circles = 3 circles perimeter = 40+40+3*2pi*r = 80+6pi*r diameter = 6 so radius is 3 --> 80+6pi*3 = 136.55
OpenStudy (anonymous):
Thank you. I like when people work the problem out so i can get it :)
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