Pls hwlp me to write this asap
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Answer:
i hope it will help you
Step-by-step explanation:
given:A triangle ABC in which BD=DC
to prove: AB= AC or ABC is an isosceles triangle.
prove: in triangle ABC and triangle ADC
AD=AD (common)
∆ADB=∆ADC (90⁰each)
BD=DC (given)
so∆ABC=∆ACD(by RHS)
soAB=AC(by cpct)
∆ABC is an isosceles triangle