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primary 6 | Maths | Geometry
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Xeno
Xeno

primary 6 chevron_right Maths chevron_right Geometry chevron_right Singapore

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Date Posted: 1 year ago
Views: 290
Xeno
Xeno
1 year ago
The answer is 64cm (perimeter). However, I do not understand the additional 8cm (4×2) of the perimeter. In my understanding, the perimeter is derived from the outer part of the figure. Could someone further explain this part?

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sstrike
Sstrike's answer
5382 answers (A Helpful Person)
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Xeno
Xeno
1 year ago
The answer is 64cm (perimeter). However, I do not understand the additional 8cm (4×2) of the perimeter. In my understanding, the perimeter is derived from the outer part of the figure. Could you explain more on this part?
sstrike
Sstrike
1 year ago
U hv to include the 4 sides of the center square (unshaded), which is belong to the figure too

This is a well designed question. A lot students missed out the centre part

Perimeter is the profile cover all edges of the figure, does NOT mean only refer to the outer parts
Xeno
Xeno
1 year ago
Thanks for your valuable comments.