Question

please solve this


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Answer 1

Answer:

Step-by-step explanation:In TRIANGLE NBD and DMC and triangle

BD=DC (given)

angle BND=Angle DMC(given and both are 90degree)

ND=MD(Given)

so by SAS concurrency rule triangle NBD is congurent to triangle DMC

and by CPCT angle B = angle C

we know that if base angles of a triangle are same then the sides opposite to the angles are also equal or it is isosceles triangle.

hope it helps you