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WAEC Mathematics 2024 Question 41

Question 41

Mensuration of Plane Shapes

Two opposite sides of a rectangle are (5x + 3) m and (2x + 9) m. If an adjacent side is (6x − 7) m, find in m2, the area of the rectangle.

  1. A.45
  2. B.65
  3. C.125
  4. D.165
Show the answer and explanation

Answer: B (65)

Explanation

Opposite sides are equal: 5x + 3 = 2x + 9 gives x = 2. The sides are 13 m and 6(2) − 7 = 5 m, so the area is 65 m².