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Mathematics for IGCSE & O level - Mensuration (Section 13 - No. 49)

A rectangle has a perimeter of 28cm and one side is 8cm. How long is the other side?
20cm
6cm
12cm
14cm

Vysvětlení

28cm - (2*8cm) = 12cm then 12cm / 2 = 6cm.

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