The area of a trapezium of height 6cm is 18cm. If one of the parallel sides is 4 cm, the other
side will be
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what is scalene triangle
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Distance between parallel sides = height of trapezium .
Area of trapezium = 1/2 (sum of parallel sides ) ×
height.
441 = 1/2 (x + 28 ) × 18 .
x + 28 = 49 .
x = 21cm.
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