   Chapter 6.3, Problem 19E ### Elementary Geometry for College St...

6th Edition
Daniel C. Alexander + 1 other
ISBN: 9781285195698

#### Solutions

Chapter
Section ### Elementary Geometry for College St...

6th Edition
Daniel C. Alexander + 1 other
ISBN: 9781285195698
Textbook Problem
8 views

# For Exercises 17 to 2, See Theorem 6.3.6.Given: A B = 4 , B C = 5 , A D = 3 Find: DE. To determine

To find:

To find DE.

Explanation

The diagrammatic representation is given below,

Theorem:

If secant segments are drawn to a circle from an external point, then the products of the length of each secant with the length of its external segment are equal.

By using the theorem to get the following,

We know that

AC=AB+BCAC=4+5AC=9

Substitute the values AB=4

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