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Secondary 1 | Maths
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Sunita
Anonymous

Secondary 1 chevron_right Maths chevron_right Singapore

Hi, would appreciate assistance on this question. Thank you.

Date Posted: 3 weeks ago
Views: 20
Eric Nicholas K
Eric Nicholas K
3 weeks ago
You can draw another line that is parallel to the two lines and hit the 75 degree point
Sunita
Sunita
3 weeks ago
Hi, my son is asking what rule is being used here. He says he needs to state the rule used. Are you able to assist? Thanks
Eric Nicholas K
Eric Nicholas K
3 weeks ago
Following the other tutor’s workings, you will need the following line of reasonings:

1. Sum of angles in a triangle is 180 degrees
2. Sum of angles on one side of a straight line is 180 degrees
3. Corresponding angles are equal
4. Interior angles of parallel lines add to 180 degrees
Eric Nicholas K
Eric Nicholas K
3 weeks ago
The part that the other tutor wrote 159 degrees twice is called corresponding angles. There is also alternate angles which is not the same, but related.
Sunita
Sunita
3 weeks ago
Thank you so much

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AC Lim
Ac Lim's answer
1635 answers (A Helpful Person)
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Hope this help
Sunita
Sunita
3 weeks ago
Thank you so much.