×Sum of the length of parallel sides×Height Now, Perimeter of a trapezium = 58 ⇒ Sum of parallel sides + Sum of non-parallel sides = 58 ∴Sum of parallel sides+20=58 Sum of parallel sides=58–20=38 Now, Area of Trapezium is given. ⇒
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× sum of the length of parallel sides×height=152 ⇒