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Secondary 1 | Maths
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Novella
Novella

Secondary 1 chevron_right Maths

Angles and parallel lines.

Date Posted: 2 years ago
Views: 147

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Tan Si Xian
Tan Si Xian's answer
14 answers (Tutor Details)
1st
Answer: 237 degrees (edit cause just now didn't see reflex angle)
Novella
Novella
2 years ago
Understandable solution until the "reflex angle" statement.
Tan Si Xian
Tan Si Xian
2 years ago
Reflex angle is the larger angle. It's more than 180 degrees but less then 360 degrees.

After finding angle ABC, which is the smaller angle, you have to take 360 - the answer in order to get the reflex angle (the bigger one) at the same point.
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Wong Yong Hui
Wong Yong Hui's answer
2 answers (Tutor Details)
Two method is given above.
Note that the answer is worth 4 marks, hinting that there will be 4 relevant steps expected. (: