Question

plzzz solve question no. 5

Answer 1

GIVEN-ABC and DBC are two isosceles triangle on the same base BC

To Prove-angle ABD=angle ACD

proof=In triangle ABC and DBC
angle ABC=angle DBC(given)
BC=CB(common side)
angle ACB=angle DCB(given)

HENCE,
triangle ABC congruent to triangle ACD
and angle ABD=angle ACD(By c.p.c.t)