Question

In the given figure, find the ratio of ZABD: ZACD.​

Answer 1

Answer:

1:1

triangle ABC and and triangle DBC are isosceles triangles

angleABC=angleACB since angle opposite to equal sides AB=AC

similarly angleDBC=angleDCB (same properly)

angleABD=angleABC-angleDBC

similarly angleACB=angleACB-angleDCB

taking the ratio will give you the answer

subtraction of a fixed angle from another fixed angle on both sides