2. AB CD AB = CD
A B C D
AB CD A
C
AB =CD B D
AB CD
AB = CD AB CD
ˆ
AOB ˆ
CED ˆ
ˆ
m AOB m CED
A C
O E
B D
ˆ
AOB ˆ
CED O
E
2
3. OA EC ˆ
ˆ
m AOB m CED OB ED
ˆ
AOB ˆ
CED
ˆ ˆ
m AOB m CED ˆ
AOB ˆ
CED
5
(
1
2
3
4. MNL STU
1) c – e = ………………………..
2) ˆ ˆ
L T = ………………………..
3) b + c = ………………………..
4) ˆ ˆ
M N = ………………………..
5) a : b : c = ………………………..
...................................
....................................................................................... .....
............ ..............
4
7. ABC DEF
A D
AB = DE, BC =
EF CA = FD
ˆ ˆ ˆ ˆ
A D, B E
ˆ ˆ
CF
ABC DEF
AB = DE, BC = EF CA = FD
ˆ ˆ ˆ ˆ
A D, B E ˆ ˆ
CF
ABC DEF
ABC
DEF
7
8. ABC
DEF
ˆ ˆ
AD AB = DE
ˆ ˆ
BE BC = EF
ˆ ˆ
CF CA = FD
ABC DEF
8
10. A E
B
………….1 ABCD = BECD
………….2 ABD BCE
………….3 ˆ ˆ
DAB CEB
………….4 AD + CD – CE = AB + BC - BE
....................................................................................... .....
............ ..............
5
10
13. AB CD O AO = BO
CO = DO AOC BOD
AB CD O AO = BO
CO = DO
AOC BOD
AOC BOD
AO = BO
ˆ ˆ
AOC BOD
----
CO = DO
AOC BOD
5
(
3
2
13
14. ABCD E F AB
BC DE DF
D C
F
A B
E
………………………………………………………………………
………………………………………………………………………
…
………………………………………………………………………
………………………………………………………………………
…
………………………………………………………………………
………………………………………………………………………
…
………………………………………………………………………
………………………………………………………………………
…
………………………………………………………………………
………………………………………………………………………
…
14