Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
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Solve for \( x \).

[Image Description]
The image contains a circle with two chords intersecting inside it. The intersection forms two line segments which divide each chord into two parts. The parts of the chords are labeled as follows:
- One chord is divided into segments labeled 8 and \( x \).
- The other chord is divided into segments labeled 5 and 20.

[Detailed Explanation]
This diagram represents a classic problem involving intersecting chords in a circle. According to the intersecting chords theorem, when two chords intersect, the products of the lengths of the segments of each chord are equal. That is, if two chords intersect at a point, forming four segments \( a \), \( b \), \( c \), and \( d \), then \( a \times b = c \times d \).

In this specific example:
- The first chord is divided into segments of length 8 and \( x \).
- The second chord is divided into segments of length 5 and 20.

The equation according to the intersecting chords theorem is:
\[ 8 \times x = 5 \times 20 \]

Simplifying the right-hand side:
\[ 8x = 100 \]

Solving for \( x \):
\[ x = \frac{100}{8} \]
\[ x = 12.5 \]

Answer: \( x \)

[Answer Input Box]
Answer: [____________]

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Transcribed Image Text:Solve for \( x \). [Image Description] The image contains a circle with two chords intersecting inside it. The intersection forms two line segments which divide each chord into two parts. The parts of the chords are labeled as follows: - One chord is divided into segments labeled 8 and \( x \). - The other chord is divided into segments labeled 5 and 20. [Detailed Explanation] This diagram represents a classic problem involving intersecting chords in a circle. According to the intersecting chords theorem, when two chords intersect, the products of the lengths of the segments of each chord are equal. That is, if two chords intersect at a point, forming four segments \( a \), \( b \), \( c \), and \( d \), then \( a \times b = c \times d \). In this specific example: - The first chord is divided into segments of length 8 and \( x \). - The second chord is divided into segments of length 5 and 20. The equation according to the intersecting chords theorem is: \[ 8 \times x = 5 \times 20 \] Simplifying the right-hand side: \[ 8x = 100 \] Solving for \( x \): \[ x = \frac{100}{8} \] \[ x = 12.5 \] Answer: \( x \) [Answer Input Box] Answer: [____________] Submit Answer
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