Question

Dijawab tolong ya . ( * = derajat )

Answer 1

A. <ABC=<DBE=40 drjt
b. <ACB=180-120=60 drjt
c. <BAC=180-(60-40)=180-100=80 drjt

jawaban terbaik ya :)

Answer 2

A. <ABC = <DBE = 40*
karena bertolak belakang
b. <ACB = 180*-<ACF
= 180*-120* = 60*
c. <BAC = 180* - (<ABC + <ACB)
= 180* - (40*+60*)
= 180* - 100* = 80*
karena total sudut segitiga = 180*