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Secondary 1 | Maths
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Date Posted: 3 years ago
Views: 184
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Hope this helps:)
Date Posted:
3 years ago
Hi Keiko,
117° + x = 72° + 4x (ext.angle of triangle)
45° = 3x
x = 15°
117° + x = 72° + 4x (ext.angle of triangle)
45° = 3x
x = 15°
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