the area of a Trapezium is 279 CM square the distance between its parallel sides is 18 cm and one of the parallel sides is 13 cm find the length of other side
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area of trapezium = 279cm
height = 18cm
length of one parallel side = 13
other parallel side = 1/2(13+x)*18= 279
= 1/2(234+18x)= 279
=117+9x=279
=9x= 162
=x= 18cm
height = 18cm
length of one parallel side = 13
other parallel side = 1/2(13+x)*18= 279
= 1/2(234+18x)= 279
=117+9x=279
=9x= 162
=x= 18cm
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