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Penjelasan dengan langkah-langkah:
4x = 100°
x = 100/4
x =25
4x + 100+2×z = 360°
4×25+100+2z = 360
100 + 100 +2z = 360
200 + 2z = 360
2z = 360-200
2z = 160
z = 160/2
z = 80
(2y+10) = z
(2y+10) = 80
2y = 80-10
2y = 70
y = 70/2
y = 35
4x = 100°
x = 100°/4
x = 25°
2y + 10° = z
360° = 2(100°) + 2z
360° = 200° + 2z
2z = 360° - 200°
2z = 160°
z = 160°/2
z = 80°
2y + 10° = z
2y + 10° = 80°
2y = 80° - 10°
2y = 70°
y = 70°/2
y = 35°
Jadi nilai x, y, z adalah 25°, 35°, 80°
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