Page 49 - GEOMETRY

Lines and Angles

1. In the given figure, If PQ  RS  QPT = (A) 160º (B) 155º
(C) 150º (D) 145º
115º and  PTR = 20º, then  SRT is equal
4. In the figure below, RT is drawn parallel to
to:
the line SQ. The value of x is:

S
P Q
Q
30º T
110º
R
T
115º 20º
P T xº
75º
60º
S
R
(A) 155º (B) 150º
(C) 135º (D) 95º
2. Two parallel lines are cut by a transversal (A) 85º (B) 45º
then which of the following are tren? (C) 120º (D) 75º
I. Pair of alternate interior angles are con- 5. In the given figure if EC  AB,  ECD =
gruent.
70º,  BDO = 20º, then  OBD is equal to :
II. Pair of corresponding angles are congru-
ent.
III. Pair of interior angles on the same side
E
of the transversal and supplementary. A
(A) I, II and III are true.
(B) I, III are true.
(C) I, II are true. 70º
O
(D) II, III are true. C D
20º
3. AB and CD are two parallel lines. The point
B are C are joined such that.  ABC = 65º, B
A line CE is drawn making angle of 35º with
the line CB. EF is drawn parallel to AB, as
show in figure then  CEF is equal to : (A) 70º (B) 60º
(C) 50º (D) 20º

A B 6. In the following figure  BOP = 2xº,  AOP
65º = 2yº. OC and OD are angle bisectors of
E
F  BOP and  AOP respectively. Find the
35º
value of  COD :
C D