The length of the parallel sides of a trapezium are 5cm and 7cm. If its area is 120cm\(^2\), find the perpendicular distance between the parallel sides

  • A 5.0cm
  • B 6.9cm
  • C 10.0cm
  • D 20.0cm
waec 2000mathematics

The correct answer is D. 20.0cm

Area of trapezium = \(\frac{1}{2} (a + b)h\)

\(120 = \frac{1}{2} (5 + 7) \times h\)

\(120 = 6h\)

\(h = 20 cm\)

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