M is the center of the circle.
Perhaps
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M is the center of the circle.
Perhaps
CD is a diameter, since it passes through the center of the circle, meaning it is the longest segment in the circle.
AB does not pass through the center of the circle and is not a diameter, therefore it is necessarily shorter.
Therefore:
No
There are only 4 radii in a circle.
Look at the center point M! Any chord that passes through the center is a diameter - the longest possible chord. Chords that miss the center are always shorter.
A diameter goes all the way across the circle through its widest part. Any other chord cuts across at a narrower section, making it shorter than the full width.
Yes! Non-diameter chords can be equal if they're the same distance from the center. But a diameter is always longer than any non-diameter chord.
Look for the point labeled as the center (like M here), then trace which lines pass directly through it. Those lines extend to form diameters on the circle.
No! Whether a chord goes horizontally, vertically, or diagonally doesn't affect its length. Only its distance from the center determines how long it is.
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