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WAEC Mathematics 2011 Question 41

Question 41

Fractions, Decimals and Approximation

A rectangular garden measures 18.6 m by 12.5 m. Calculate, correct to three significant figures, the area of the garden.

  1. A.230 m2
  2. B.231 m2
  3. C.232 m2
  4. D.233 m2
Show the answer and explanation

Answer: D (233 m2)

Explanation

18.6 × 12.5 = 232.5 m2, which is 233 m2 to 3 significant figures.