Plisss di jwb yah...

•Panjang JK = BC
JK = 18 cm
•Panjang JL = BA
JL = 19 cm
•Panjang AC = LK
AC = 17 cm


•Besar sudut K
= 180° - (besar sudut A + besar sudut B)
= 180° - (60° + 50°)
= 180° - 110°
= 70°
•Besar sudut C = besar sudut K
besar sudut C = 70°