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primary 5 | Maths | Area & Volume
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primary 5 chevron_right Maths chevron_right Area & Volume chevron_right Singapore

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Date Posted: 7 months ago
Views: 72
7 months ago
You've gotten the area of each square correct.

Realise that the horizontal parts of the perimeter on either side of the figure (top and bottom) add up to 3 sides of a square.

Another way to solve this :

First, find out the total perimeter of these squares if they are not joined together.

Then, observe the figure. Find out how many sides of a square are being blocked from the outside (the sides that do not form the perimeter)

Subtract the sum of the from the total perimeter

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AC Lim
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