AC Lim's answer to Cshjwrk's Primary 6 Maths Measurement Singapore question.
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Hope this help
Date Posted:
5 years ago
How u get 7 unit
3rd string increased 6cm.
3rd string = 2u -6
At 1st,
String A = 1u
String B = 4u
String C = 2u -6
Therefore, total
7u -6 = 50
7u = 56
3rd string = 2u -6
At 1st,
String A = 1u
String B = 4u
String C = 2u -6
Therefore, total
7u -6 = 50
7u = 56
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