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Mathematics 21 Online
OpenStudy (themineturtle):

What is the perimeter of the figure to the nearest hundredth of an inch?

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

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= ?

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 ?

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

OpenStudy (anonymous):

so yes is 4 - do you know the formula of circumference of a circle ?

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