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Mathematics 18 Online
OpenStudy (anonymous):

The length of a chord of a circle is 16 and its distance from the center is 6. Find the length of a diameter of the circle

OpenStudy (anonymous):

radius = 6 correct? diameter = 2* radius diameter = 12 units

OpenStudy (anonymous):

Thank you so much! x

OpenStudy (anonymous):

That is not correct.

OpenStudy (anonymous):

best i could do given not very clear instructions

OpenStudy (anonymous):

The chord of a circle is a segment going from one point on the circle to another point on the circle, like this: http://images.tutorvista.com/cms/images/39/chord-of-a-circle.PNG

OpenStudy (anonymous):

ahhhhhh, that makes more sense, hold up

OpenStudy (anonymous):

I would have given more instruction, but that was the only information written. I apologize. Thank you both for helping!

OpenStudy (wolf1728):

Here is the formula: see #4 http://1728.org/circpart.htm

OpenStudy (wolf1728):

I'd say the 6 inch measurement is the apothem.

OpenStudy (anonymous):

Based on the information given, you have something like this |dw:1399439471284:dw|

OpenStudy (anonymous):

Can you find the radius? After you find the radius, find the diameter.

OpenStudy (wolf1728):

That's how I think it measures also.

OpenStudy (anonymous):

Thank you all for helping!

OpenStudy (anonymous):

No problem :)

OpenStudy (wolf1728):

radius² = 6² + 8² radius² = 100² radius = 10

OpenStudy (anonymous):

Thank you so much!

OpenStudy (wolf1728):

Need any more explanation?

OpenStudy (anonymous):

No, that helped a lot. Thank you! :)

OpenStudy (wolf1728):

Okay - glad to help you. :-)

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