ABCD is a trapezium in which AB∥CD and AD=BC show that (i) ∠A=∠B (ii)∠C=∠D (iii) △ABC≅△BAD (iv) diagonal AC= diagonal BD

ABCD is a trapezium in which $A B ∥ C D a n d A D = B C$ show that (i) $∠ A = ∠ B$ (ii) $∠ C = ∠ D$ (iii) $△ A B C ≅ △ B A D$ (iv) diagonal AC= diagonal BD

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