9.48 Chapter 9
3. ABCD + EFGH 4. ABCDE + RSTUV
96°
5 4
5
C
D
A E
y x
B
F
H
G
124°
9
6
6
8
B
C
T
V
U R
S
yx
E
D
A
5. ABCD + EFGH 6. ABCD + HGFE
66°
80°
7
6 12
9B C H
G
F
E
D
x
y
A
110°
20
25
16
A
D H
E
C
B y
x G
F
7. Refer to the figure. It is given that the sum of interior angles of
quadrilateral ABCD is 360c . Explain why it is impossible for
quadrilaterals ABCD and EFGH to be similar figures.
80°
110° 110°
70°
A
D
C
B
F G
E
H
8. Refer to the figure. Explain why it is impossible for quadrilaterals
ABCD and PQRS to be similar figures.
3 cm
3 cm
3 cm 3 cm
D C
A B
3 cm
3 cm
2 cm
2 cm
S R
P Q
➥ Example 16
➥ Example 17