Rahimima
A = Nilai a = 120 ° Nilai b = 140° Nilai c = 100°
B = Jumlah = 120°+140°+100° =360°
maaf kalo salah....
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liwonsubagyo
1). A adalah susut pelurus 60 + a = 180 ...... a = 180 - 60 ....... = 120........ B adlah sudut berpelurus 40 + b = 180......... b = 180 - 40....... = 140....... Jumlah sudut Δ = 60 + 40 + x = 180........... x = 180 - 100........ = 80....... C adalah sudut pelurus 80 + c = 180........ c = 180 - 80.......... = 100...... B) jadi nilai = a° + b° + c° = 120° + 140° + 100° = 360°...........semoga bisa membantumu ino sudah dengan caranya.....
Nilai a = 120 °
Nilai b = 140°
Nilai c = 100°
B =
Jumlah = 120°+140°+100°
=360°
maaf kalo salah....