the area of trapezium is 279 CM square the distance between its parallel side is 18 cm and one of parallel sides is 13cm find the length of other sides answer
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area of trapz. = 1\2 × h (sum of parallel sides ). 279cm=1/2×18(13+x) 279=9(13+x). 279/9=13+x. 31=13+x. x=31-13. x=18.
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