Jawaban:
2. sudut KLN dengan MLN berjumlah 180°
MLN =
4x + 9 = 4(19) + 9
76 + 9 = 85°
KLN
5x = 5(19) = 95°
3. sudut yg berseberangan nilainya sama
3x + 60 = 120°
3x = 120 - 60
x = 60 ÷ 3
x = 20°
z = 180° - 120° = 60°
no 4 klo garis lurus pasti jadinya siku" (90°), kenapa 75° ya yg bawah?
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Jawaban:
2. sudut KLN dengan MLN berjumlah 180°
MLN =
4x + 9 = 4(19) + 9
76 + 9 = 85°
KLN
5x = 5(19) = 95°
3. sudut yg berseberangan nilainya sama
3x + 60 = 120°
3x = 120 - 60
x = 60 ÷ 3
x = 20°
z = 180° - 120° = 60°
no 4 klo garis lurus pasti jadinya siku" (90°), kenapa 75° ya yg bawah?