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Elementary Geometry For College St...

7th Edition
Alexander + 2 others
ISBN: 9781337614085

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Section
BuyFindarrow_forward

Elementary Geometry For College St...

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

In the figure for Exercises 7 to 16, O is the center of the circle. See Theorem 6.3.5.

Given: A E = 9 a n d E B = 8 ; D E : E C = 2 : 1

Find: DE and EC.

To determine

To find:

To find DE and EC.

Explanation

Given that, AE=9andEB=8;DE:EC=2:1.

The diagrammatic representation is given below,

Theorem:

If two chords intersect within a circle, then the product of the lengths of the segments (parts) of one chord is equal to the product of the lengths of the segments of the other chord.

By using the theorem to get the following,

AEEB=DEEC

Given that DE:EC=2:1 that is DE=2xandEC=x

Substitute the values AE=9andEB=8;DE=2xandEC=x in the above equation to get the following,

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