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The longer diagonal of a trapezium is 6.23 cm, its two parallel sides are 8 cm and 5 cm while one of the non-parallel sides is 4 cm. Calculate the area of the trapezium.
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Note: This problem has dynamic elements. This means elements such as numbers and consequently the step-by-step solution and the final answer may change overtime. Therefore, there may be a difference between a problem that is published online and the same problem exported into a PDF document.
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