   Chapter 6.CR, Problem 21CR Elementary Geometry For College St...

7th Edition
Alexander + 2 others
ISBN: 9781337614085

Solutions

Chapter
Section Elementary Geometry For College St...

7th Edition
Alexander + 2 others
ISBN: 9781337614085
Textbook Problem

In Review Exercises 15 to 22, state whether the statements are always true (A), sometimes true (S), or never true (N).Tangents to a circle at the endpoints of a diameter are parallel.

To determine

To state: Whether the statement is always true (A), sometimes true (S), or never true (N).

Explanation

Theorem:

The line that is perpendicular to the radius of a circle at its endpoint on the circle is a tangent to the circle.

Calculation:

Given that

Tangents to a circle at the endpoints of a diameter are parallel.

Let O be the center of the circle.

CD is the diameter.

l is the tangent to the circle at C and m is the tangent to the

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