In the diagram, PQST and QRST are parallelograms. Calculate the area of the trapezium PRST.

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Mathematics WAEC 1999

In the diagram, PQST and QRST are parallelograms. Calculate the area of the trapezium PRST.

  • 60cm2
  • 50cm2
  • 40cm2
  • 30cm2 checkmark

The correct answer is: D

Explanation

PR = 4 + 4 = 8 cm

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

= \(\frac{1}{2} (4 + 8) \times 5\)

= 30 cm\(^2\)

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