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Mathematics 13 Online
OpenStudy (anonymous):

Medal to person who answers and helps me understand:

OpenStudy (anonymous):

|dw:1362962745675:dw|

OpenStudy (anonymous):

but it has all the info. Do you need me to rewrite it?

OpenStudy (anonymous):

oh i think its 2

OpenStudy (mertsj):

Is the center of the circle indicated?

OpenStudy (anonymous):

|dw:1362963306954:dw| The black dot

OpenStudy (anonymous):

I think if: 1. Chords are = distance from center they are congruent. and 2. Congruent chords are = distance from center.

OpenStudy (mertsj):

Ok. That's what I figured. We need to use the Pythagorean Theorem to find the radius of the circle. Also we need to remember that a radius that is perpendicular to the chord bisects the chord.

OpenStudy (mertsj):

|dw:1362963425328:dw|

OpenStudy (mertsj):

What you posted is true, however, the chords in your picture are not the same length are they?

OpenStudy (anonymous):

no. In the original pic they are not either.

OpenStudy (mertsj):

One of them is 4 and the other one is 8, is that right?

OpenStudy (anonymous):

yeah

OpenStudy (mertsj):

So did you read what I wrote about finding the radius?

OpenStudy (anonymous):

ya

OpenStudy (mertsj):

Can you find the radius?

OpenStudy (anonymous):

1 sec

OpenStudy (anonymous):

not really

OpenStudy (anonymous):

is it 4?

OpenStudy (mertsj):

|dw:1362963862073:dw|

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