Find the sum of the lengths of the bases of a trapezium whose area is 4.2 m2 and whose height is 280 cm.
Area of trapezium = 
Area of trapezium = 
Sum of parallel sides = 
Therefore sum of length of parallel sides = 3 m
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Find the sum of the lengths of the bases of a trapezium whose area is 4.2 m2 and whose height is 280 cm.
Area of trapezium =
Area of trapezium =
Sum of parallel sides =
Therefore sum of length of parallel sides = 3 m