Consider triangle PQR with line segment ST parallel to line segment QR. R The table shows a proof that line segment ST, parallel to line segment QR, divides the sides of the triangle proportionally. Step Statement Reason 1 ST I QR 1. Given 2 LP LP 2. Reflexive Property 3 ZPST = LPQR, and ZPTS E LPRQ 3. 4 APST is similar to APQR. 4. AA similarity PQ PR 5. PS PT 6. Substitution; Sis a point on the line segment PQ, and Tis a point on the line segment PR. PS + SQ PT + TR %3D PS PT SQ = 1 + PS TR 1+ 7. Separating the parts of the numerators PT sQ_ TR PS PT 8. Subtracting 1 from both sides
Consider triangle PQR with line segment ST parallel to line segment QR. R The table shows a proof that line segment ST, parallel to line segment QR, divides the sides of the triangle proportionally. Step Statement Reason 1 ST I QR 1. Given 2 LP LP 2. Reflexive Property 3 ZPST = LPQR, and ZPTS E LPRQ 3. 4 APST is similar to APQR. 4. AA similarity PQ PR 5. PS PT 6. Substitution; Sis a point on the line segment PQ, and Tis a point on the line segment PR. PS + SQ PT + TR %3D PS PT SQ = 1 + PS TR 1+ 7. Separating the parts of the numerators PT sQ_ TR PS PT 8. Subtracting 1 from both sides
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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Transcribed Image Text:cricket ?
8:41 PM
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Consider triangle PQR with line segment
ST parallel to line segment QR.
S
T
R
The table shows a proof that line segment
ST, parallel to line segment QR, divides the
sides of the triangle proportionally.
Step
Statement
Reason
ST |I QR
1. Given
2
ZPE LP
2. Reflexive Property
3
ZPST = LPQR, and <PTS= LPRQ
3.
4
APST is similar to APQR.
4. AA similarity
PQ
PR
5.
PS
PT
PS + SQ
РТ + TR
6. Substitution; Sis a point on the line segment
PQ, and Tis a point on the line segment PR.
6.
%3D
PS
PT
SQ
1+ =1 +
PS
TR
7
7. Separating the parts of the numerators
PT
SQ
TR
8
8. Subtracting 1 from both sides
%3D
PS
PT
AA A
student.masteryconnect.com C

Transcribed Image Text:cricket ?
8:41 PM
5%
Which are the correct reasons for Step 3
and Step 5?
Reason 3: Alternate interior
angles are equal.
Reason 5: Corresponding sides
of similar triangles are equal.
Reason 3: Corresponding angles
are equal.
Reason 5: Corresponding sides
of similar triangles are equal.
Reason 3: Alternate interior
angles are equal.
Reason 5: Corresponding sides
of similar triangles are
proportional.
Reason 3: Corresponding angles
are equal.
Reason 5: Corresponding sides
of similar triangles are
proportional.
AA
A student.masteryconnect.com C
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