Question

In given figure, AD = DC and AB = BC

Show that ΔABD ≅ ΔCBD​

Answer 1

Step-by-step explanation:

In ΔABD and ΔCBD,

sideAD = side DC...................given

sideAB = sideBC..................given

side DB= side DB .......................common side

therefore, ΔABD and ΔCBD are congurent.

by S-S-S test of congurence.

ΔABD = ΔCBD

Answer 2

∆ABD and ∆CBD

seg AB≈seg CB.........(given)

seg AD≈segCD.………(given)

seg DB≈ seg BD.......………(common side)

therefore,

∆ABD≈∆CBD by S-S-S test....