The document contains a worksheet with 12 geometry problems involving lines and angles. For each problem, students are given a diagram with one or more straight lines and angles labeled, and are asked to determine the measure of an unspecified angle or variable based on the information given.

1. v
ut
s
RQP
LINES AND ANGLES
Name : ____________________
Form : ____________________
1. In diagram 1, PQR is a
straight line.
Given that s = v and t = u,
which of the following
statements is true?
A. s = t
B. u = v
C. s + t = 90º
D. s + v = 90º
2. In diagram 2, JKL and
MKN are two straight
lines.
Find the value of y.
3. In diagram 3, PQRS is a
straight line.
50°
2x
3x
S
R
Q
P
Find the value of x.
4. In diagram 4, PQR is a
straight line.
R
Q
P
100°60°
x
Find the value of x.
5. In diagram 5, PRT and
QRS are straight lines.
55°
45° x°
T
S
R
Q
P
Find the value of x.
6. In diagram 6, LMN is a
straight line.
30°
70°
x
NML
Find the value of x.
7. diagram 7, FGH is a
straight line.
100°
25° p
HGF
The value of p is
8. In diagram 8, x =
x
135°
125°
9. Based on diagram 9, find
the value of x.
x
70°
120°
10. In Diagram 10, PQRS is a
straight line.
y
40°
60°
S
R
Q
P
Find the value of y.
11. In Diagram 11, JMN is a
straight line.
Find the value of x.
12. In Diagram 12, DEF is a
straight line.
2x
y
75°
3x L
N
K
M
J
45°
70°
x
LK
NMJ

2. FD E
y
50°
110°
Find the value of y.