We just started a chapter devoted to circles in Geometry, and I decided to show you what I’m learning.

A Chord’s endpoints lie in the circle.

A Secant goes straight through the circle.

A Tangent only touches the circle at one point.

The Point of the Tangent is where the tangent touches the circle.

Now, try to classify all of the lines in this problem:

ANSWERS:

Chords- AB, AC, AD

Secant- BC

Tangent- E

Point of the Tangent- E

Radii (plural of Radius)- AB, AC, AD

Diameter- BC