In triangle A,B,C A=29degree ,B=36 degree =b=15.8cm fine a

Answer 1

The length of side C can be found using the Law of Cosines:

C = sqrt(a^2 + b^2 - 2ab cos(A))

C = sqrt(15.8^2 + 15.8^2 - 2(15.8)(15.8)cos(29))

C = sqrt(254.24)

C = 15.9 cm

Answer 2

AAAaannndd the bot gets it wrong yet again!
Lots of math, but it didn't answer the question!
and it got it wrong anyway ...

a/sinA = b/sinB
a/0.4848 = 15.8/0.5878
a = 13.03