Question

In triangle abc,ab=ac.D is a point inside triangle abc such that bd=dc.Prove that angle abd=acd

Answer 1

Answer:

by CPCTC

Step-by-step explanation:

in ∆ABD and∆ACD

AB=AC(given)

AD=AD(common)

BD=DC(given)

so,∆ABD~∆ACD(by SSS)

now, angle ABD=angle ACD

(CPCTC).

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