the area of a trapezium is 119cm2 and its altitude is 7 cm
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area of trapezium=1/2×(sum of parallel sides)×altitude
119cm2 =1/2×(a+b)×7
119cm2×2/7=a+b
17×2=a+b
34 =a+b
119cm2 =1/2×(a+b)×7
119cm2×2/7=a+b
17×2=a+b
34 =a+b
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