XC = YB
les aree
EXAMPLE 9 Suppose line segments AB and CD intersect at 0 in such a way
AO = OD and OB = OC. Prove that AC = BD but AC may not be parallel to BD.
SOLUTION In ASAOC and DOB, we have
C
A
O
B
D
Fig. 12.13
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sorry. for this....
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