6 the given figure o is the midpoint of each of the line segment a b and CD prove that AC is equal to BD and ac parallel BC
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Answered by
9
In triangles AOC and BOD, we have
AO = BO (O, the midpoint of AB) ;
∠AOC=∠BOD, (vertically opposite angles);
CO=OD, (O, the midpoint of CD)
So by SAS postulate we have
△AOC≅△BOD.
Hence, AC = BD, as they are corresponding parts of congruent triangles.
Answered by
4
Answer:
In triangles AOC and BOD, we have
AO = BO (O, the midpoint of AB) ;
∠AOC=∠BOD, (vertically opposite angles);
CO=OD, (O, the midpoint of CD)
So by SAS postulate we have
△AOC≅△BOD.
Hence, AC = BD, as they are corresponding parts of congruent triangles.
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