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OpenStudy (myschf711):
The diameter of a trampoline is 12 ft. The diameter of its metal frame is 14 ft. What is the length in feet of the metal frame?
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OpenStudy (kt7779):
find the radius of a circle with a diameter of 14
OpenStudy (myschf711):
To find the radius is D ÷ 2 right?
OpenStudy (anthonyym):
Yes, D/2 is the radius.
OpenStudy (anthonyym):
It asks for the length of the metal frame, in other words the perimeter (circumference, since a trampoline is a circle). Circumference of a circle is pi*diameter, or pi*2*radius.
OpenStudy (robtobey2):
Pi * 14
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OpenStudy (robtobey2):
The circumfrence of a circle is Pi times the circle's diameter.
OpenStudy (myschf711):
Thank you all for your help. I think the formula has finally sunken in.
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