Question

answer this question​

Answer 1

easy bro collary of the APOLLONIUS THEOREM

Answer 2

Answer:

Step-by-step explanation: in triangle ABC

Angle adb is 90 degree

So it is a right angled triangle

By pythegorams theorem

So. AB^2=AD^2+BD^2

Similarly in triangle ADC

AC^2=AD^2+CD^2

DA=DA (common)

It is given AD perpendicular to BC

So it may be a median

So ΔADC ≅ΔABD

So. We get AB^2+CD^2=BD^2+AC^2 BY CPCT

Thank you