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secondary 4 | A Maths
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kathy2
Kathy2

secondary 4 chevron_right A Maths chevron_right Singapore

Thank you

Date Posted: 3 months ago
Views: 17
Eric Nicholas K
Eric Nicholas K
3 months ago
Seen. I later teach you how to use the shoelace method so find areas.

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Eric Nicholas K
Eric Nicholas K's answer
3324 answers (Tutor Details)
1st
Q1

The shoelace method. Let me check a while first because the answer seems ridiculously small.
Eric Nicholas K
Eric Nicholas K
3 months ago
Wait first. I may change answer. Should not be that small in value since the coordinate differences are very big.
Eric Nicholas K
Eric Nicholas K
3 months ago
Never mind, I checked the data points on a graph plotter and found that the points almost fit a straight line, so the area should be small.
kathy2
Kathy2
3 months ago
The answer is 3/2
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Eric Nicholas K
Eric Nicholas K's answer
3324 answers (Tutor Details)
Q2

The shoelace method is trickier for rectangles and higher polygons.