Question

if BM= CN prove that triangle ABC is isocles triangle

Answer 1

Answer:

BM= CN prove that triangle ABC is isocles triangle

Answer 2

Answer:

In triangle ABC

AB = AC

So, angle ABC and angle ACB

or, angle NBC and angle MCB....(1)

Now, in right triangle CNB and angle BMC

angle NBC = MCB...from (1)

angle CNB = angle BMC (each 90 degree)

and BC = BC (common)

therefore, angle BMC =~ angle CNB

and also BM = CN (by CPCT)proved.

$hope \: its \: help \: you$

✌︎✌︎