Nilai y pada gambar adalah ...
a. 20°
b. 30°
c. 40°
d. 60°
Jawab:
2y° + 120° = 180°
2y° = 180° - 120°
2y° = 60°
y = 60°/2
y = 30°
(OPSI B)
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Nilai y pada gambar adalah ...
a. 20°
b. 30°
c. 40°
d. 60°
Jawab:
2y° + 120° = 180°
2y° = 180° - 120°
2y° = 60°
y = 60°/2
y = 30°
(OPSI B)