Question

only brilliant can answers maths question

Answer 1

given, AB=AD And angle bac = angle cad

now in triangle abc and adc
AB=AD. (given)
BAC=CAD

AC=AC (common)
so bySAS rule triangleABC is congruent to ADC

and by CPCT BC=DC

Answer 2

^ in this answer this ( ^ )symbol indicates triangle

in ^ABC and ^ADC

AB = AD ( GIVEN )

<BAC = <DAC ( BISECTOR )

AC = AC (COMMON SIDE )

by SAS congurency criterion

^ABC congurent to ^ADC

BY CPCT,,,,

BC = CD


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