Chapter 6.CR, Problem 21CR

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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.

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