Exercise Problems II — task. Mathematics CBSE, Class 9.

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$ABCD$ is a quadrilateral in which

$AD = BC$ and

$∠ DAB = ∠ CBA$ .

Prove that:

(i)

$∆ ABD ≅ ∆ BAC$

(ii)

$BD = AC$

(iii)

$∠ ABD = ∠ BAC$ .

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10. Exercise Problems II