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Mathematics
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OpenStudy (themineturtle):
What is the perimeter of the figure to the nearest hundredth of an inch?
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OpenStudy (themineturtle):
OpenStudy (themineturtle):
@welshfella
OpenStudy (anonymous):
so than you see there this 8 is the diameter of this semicircle - yes ?
so from this you can getting the length of radius - yes ?
OpenStudy (anonymous):
so after you get the length of radius you can calculi easy the circumference of this semicircle
ok. ?
OpenStudy (themineturtle):
I don't know how to get the length
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OpenStudy (themineturtle):
A.
68.24 inches
B.
43.12 inches
C.
38.56 inches
D.
26 inches these are the answers my guess was a
OpenStudy (anonymous):
so than you see there this 8 mean the diameter of this semicircle so than you know the length of diameter how many will be the radius ?
OpenStudy (anonymous):
hope you know that diameter equal 2 radius - yes ?
OpenStudy (themineturtle):
16
OpenStudy (anonymous):
D=2r
8=2r so r= ?
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OpenStudy (themineturtle):
16? or 4?
OpenStudy (anonymous):
r=8/2 = ?
OpenStudy (anonymous):
are you here ?
OpenStudy (themineturtle):
@valadin1
OpenStudy (anonymous):
you dont like collaborate please ?
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OpenStudy (themineturtle):
what?
OpenStudy (anonymous):
r=8/2 = ?
OpenStudy (themineturtle):
I said 16
OpenStudy (anonymous):
how you get from 8 divide 2 equal 16 ?
OpenStudy (themineturtle):
sorry I thought it was times its 4
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OpenStudy (anonymous):
so yes is 4 - do you know the formula of circumference of a circle ?
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