Eileen Peh's answer to Tarah toh's Secondary 4 A Maths Singapore question.
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Hope this helps!
Date Posted:
4 years ago
Not correct, or at least incomplete. There are two more angles:
2x = basic, 180 + basic, basic + 360, 180 + basic + 360
You missed out two of them.
So, 2x = 45, 225, 405, 585
x = 22.5, 112.5, 202.5, 292.5
The range given (find all angles between...) is for x, not for 2x.
2x = basic, 180 + basic, basic + 360, 180 + basic + 360
You missed out two of them.
So, 2x = 45, 225, 405, 585
x = 22.5, 112.5, 202.5, 292.5
The range given (find all angles between...) is for x, not for 2x.
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