Answer:
m=5 , a=3 x= 3 you get that by looking at the other numbers that they provided.
Approximately there are some of these on the we
It’s 10.2040816 right!!!!
The answer for your problem is shown on the picture.
Given that ΔBDA is similar to ΔBDC and:
AD≡DC
AB≡BC
BD≡BD (shared side)
then the best postulate to use is the side-side-side (SSS) postulate.
Answer: SSS