4. In Fig 7.25, and bisect each other at .
(i) State the three pairs of equal parts in two triangles and .
(ii) Which of the following statements are true?
i) The three pairs of equal parts in two triangles and are:
CO = DO (given)
OA = OB (given )
( As opposite angles are equal when two lines intersect.)
ii) So by SAS congruency rule,
Hence, option B is correct.
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