AC Lim's answer to Nidia's Secondary 2 Maths Singapore question.
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3x+7x+5x = 180
15x = 180
x = 12
Largest angle = 7x = 7× 12 = 84°
15x = 180
x = 12
Largest angle = 7x = 7× 12 = 84°
Date Posted:
2 years ago
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