5a + 4a = 180°
9a = 180°
a = 20°
= 4a
= 4(20°)
= 80°
= 5a
= 5(20°)
= 100°
a. 20°
b. 80
c. 100
d. 80
e. 100
5a dan 4a berhubungan sudut satu garis lurus, jadi kalau ditotal 180°.
Jadi
5a+4a = 180°
9 a = 180°
a = 180°/9 = 20°
QTR = 4a = 4(20) = 80°
RTS = 5a = 5(20) = 100°
PTS = 4a = 80° (bertolak belakang dengan QTR)
PTQ = 5a = 100° (bertolak belakang dengan RTS)
Contoh sudut pelurus : brainly.co.id/tugas/113854
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A.) Besar a°
5a + 4a = 180°
9a = 180°
a = 20°
B.)
= 4a
= 4(20°)
= 80°
C.
= 5a
= 5(20°)
= 100°
D.)
= 4a
= 4(20°)
= 80°
B.)
= 5a
= 5(20°)
= 100°
Jawab:
a. 20°
b. 80
c. 100
d. 80
e. 100
Penjelasan dengan langkah-langkah:
5a dan 4a berhubungan sudut satu garis lurus, jadi kalau ditotal 180°.
Jadi
5a+4a = 180°
9 a = 180°
a = 180°/9 = 20°
QTR = 4a = 4(20) = 80°
RTS = 5a = 5(20) = 100°
PTS = 4a = 80° (bertolak belakang dengan QTR)
PTQ = 5a = 100° (bertolak belakang dengan RTS)
Pelajari Lebih Lanjut
Contoh sudut pelurus : brainly.co.id/tugas/113854