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Question
OA OD
Il
D.
INCERT)
) From (
EXAMPLE 28 In Fig. 4.112 p. Prove that Z A=_ Cand Z B=
SOLUTION in A's AOD and COB, we have
OA OD
OC OB
OA OC
ODOB
Also,
[Vertically opposite angles)
So, by SAS-criterion of similarity, we obtain
A AOD-ACOB
D
ZA= 2 C and Z B=ZD
EXAMPLE
Fig. 4.112
m) From
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