" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
< cde = segitiga jumlah sudut segi tiga 180 derajat
< cde = 56
< e = 44
< c = 180 - (56 + 44)
< c = 40
< c berpelurus dengan < bce , jumlah sudut berpelurus 180
jadi < bce = 180 - 40 = 120 derajat