Question

In the given figure, AD = BC and AC = BD. Prove
that angle
ADC = angle BCD​

Answer 1

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In ∆ADC and ∆BCD,

AD = BC (given)

AC = BD (given)

DC = CD (common)

by SSS congruency rule

∆ADC ≅ ∆BCD

by cpct :-

<ADC = <BCD

hence proved !

Answer 2

Answer:

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