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primary 6 | Maths | Measurement
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Eleanor
Eleanor

primary 6 chevron_right Maths chevron_right Measurement chevron_right Singapore

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Date Posted: 4 weeks ago
Views: 22
J
J
4 weeks ago
There are 5 equal longer sides and 5 equal shorter sides.

5 equal longer sides + 5 equal shorter sides = 150cm

You can group them into 5 equal sets, each having 1 shorter and 1 longer side.

So 5 sets = 150cm

1 set = 150cm ÷ 5 = 30cm

Notice that ABCFE is just 1 longer + 1 shorter side


So ABCFE = 30cm

You don't have to assume any lengths to solve the question. And you shouldn't do so as no lengths are given. It will be considered mathematically incorrect.

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jacob
Jacob's answer
6 answers (A Helpful Person)
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J
J
4 weeks ago
Cannot assume that the longer sides are 20cm and the shorter sides are 10cm, as it is not given in the question. This is mathematically incorrect