(09.01 LC)

Match the term on the right with its image or description on the left. (6 points)

Term Definition
0801_01_bterm1.gif
a segment between the center of a circle and a point on the circle
the distance around a circle
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0801_01_fterm5.gif
the distance along a circle between two points on the circle

Answers and Explanations:

1. Secant line

There are various different kinds of lines in geometry, and each has its own aspects. A secant line is a line that crosses the shape or graph at exactly two points. Here, we can see that line BC crosses circle A at two points: B and C, so we know it's a secant line.

2. Chord

A line segment that connects two points on a circle without crossing the center is called a chord. Now, if the segment had crossed the center, then it would have been called the diameter.

3. Tangent line

As aforementioned, there are different kinds of lines in geometry. Where a secant line has two intersection points, a tangent has only one. Tangent literally means "touching", and we can see from the picture that the line running through point B is "touching" circle A at exactly one point: B.

Hope this helps!

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