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A rectangle with width \(\frac{3}{4}\)cm and area 3 \(\frac{3}{8}\)cm\(^2\). Find the length

Mathematics
WAEC 2022

A rectangle with width \(\frac{3}{4}\)cm and area 3 \(\frac{3}{8}\)cm\(^2\). Find the length

  • A. 6cm
  • B. 4\(\frac{1}{2}\)cm
  • C. 2 \(\frac{5}{8}\)cm
  • D. 12cm
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Correct Answer: Option B
Explanation

The area of a rectangle = length ✕ width

: Length = area ÷ width → 3 \(\frac{3}{8}\) ÷ \(\frac{3}{4}\)

= \(\frac{27}{8}\) * \(\frac{4}{3}\)

= 4\(\frac{1}{2}\)cm


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