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OpenStudy (anonymous):
A mirror frame in the shape of an oval is shown below. The ends of the frame form semicircles:
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OpenStudy (anonymous):
OpenStudy (plasmataco):
What to find?
OpenStudy (anonymous):
Which of the following is the perimeter of the inner edge of the frame? (π = 3.14) 146.78 inches 208.78 inches 293.56 inches 347.56 inches
OpenStudy (plasmataco):
The perimeter of a circle is diameter times pi. Two semicircles make up for one circle so because the diameter is 27 we have 27 pi. Then add the 62 to it twice because of the long areas. We have 124+27pi
OpenStudy (plasmataco):
The second one
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OpenStudy (anonymous):
208.78 inches is my answer?
OpenStudy (plasmataco):
Yes
OpenStudy (anonymous):
thanks! :)
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