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P = 180 - (38+75)
P = 180 - 113
P = 67
[itu angkanya 38 bukan? burem soalnya]
5.
a. DEC = 180-[besar sudut DEA, fotonya burem]
b.BEC = AED [angkanya ga jelas]
c. <DEA= <BEC
<AEB = <DEC