NAME
DATE
7-4
PERIOD
Skills Practice Parallel Lines and Proportional Parts
1. If JK = 7, KH = 21, and JL = 6, find LI. K
2. If RU = 8, US = 14, TV = x - 1, and VS = 17.5, find x and TV. S
J L
H
V
U R
I
18
T
11; 10
−− −− Determine whether BC DE. Justify your answer. 3. AD = 15, DB = 12, AE = 10, and EC = 8
B D
5 AD AE yes; − =− =− DB
EC
4
1 4. BD = 9, BA = 27, and CE = − EA
A
3
C
E
CE BD no; − ≠− DA EA 5. AE = 30, AC = 45, and AD = 2DB
AE AD 2 yes; − =− =− 1
−− JH is a midsegment of KLM. Find the value of x. 7.
-
x
30
+ ,
+
x
.
)
,
15
)
8. ,
-
x
9
. 8
6.
+
. )
-
18
8
ALGEBRA Find x and y. 10.
9. 2x + 1 x+7
3y - 8 y+5
3– x 2
x = 6, y = 6.5
Chapter 7
2y - 1 x+3
3y - 5
+2
x = 2, y = 4
26
Glencoe Geometry
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
DB
EC
