Page 155 - Start Up Mathematics_7

p q

4. In the given figure, l || m and p || q. Find the 68° l
measure of angles ∠1, ∠2, ∠3 and ∠4. 4 3

2
1
m

P l

5. In the given figure, l || m. Find the values x z
of x, y and z. y

50° 45°
Q R m

E
6. In trapezium ABCD, AB || DC and AD 75°
is produced to E, such that ∠CDE = 75°. D z z C
Find the values of x, y and z.

x y
A B
7. Given l || m, find the value of the unknown angles in each of the following figures.

l m l
t m
120° x
110° 2x t p
(a) l (b) (c) y
y x
70°
x q
m

8. In the given figure, show that AB || EF.

A
B
75°

E F
140°
35°
40°
C
D

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