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NECO 2023 · Paper 1 · Q15

The area of a rectangular piece of cardboard is 104 cm2104\text{ cm}^2. If its width is 8 cm8\text{ cm}, find its perimeter.

Worked solution (try it first)
  1. Length == area ÷\div width =104÷8=13= 104 \div 8 = 13 cm.
  2. Perimeter =2(13+8)=42= 2(13 + 8) = 42 cm, option B.

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