http://prntscr.com/5w57zq http://prntscr.com/5w588f Link to the question @Directrix
@Directrix
First, we need to know what a chord of a circle is.
the line segment joining two points on a curve.
Good. A line segment on the interior of a circle. A chord has both endpoints on the circle.
Im thinking that its BC cause its the only straight line but do diagonal lines count
and when i say straight i mean like straight down
Any segment with its endpoints on the circle counts. It does not matter whether the segment is going up, down, or to the side.
Does segment OA have both endpoints on the circle?
By end points do you mean going straight across both sides of the circle? or can it stop in the middle where O is?
Look at the attachment. I outlined segment OA in blue. Is O a point on the circle? Is A a point on the circle. By "on the circle" I mean the ring of points which make the circle. Not the interior of the circle.
A is on the circle. O is not. So, segment AO is not a chord. |dw:1422043442027:dw|
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