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Mathematics for IGCSE & O level - Mensuration (Section 6 - No. 34)

A rectangle has an area of 40 cm² and a width of 5 cm. What is the length?
5 cm
8 cm
10 cm
200 cm

解释

Since area = length * width, then length = area / width = 40 cm²/5cm = 8 cm.

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