the length of parallel sides of a trapezium are int he ratio 7:5 and the distance between them is 14cm. If the area of the trapezium is 252cm square find the length of ots parallel sides. plz ans fast
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heya!
here's ur answer...
let the parallel sides be 7x and 5x.
area of the trapezium=252cm²
1/2×h(b1+b2)=252cm²
1/2×14(7x+5x)=252cm²
7×12x=252cm²
12x=252/7
12x=36
x=36/12
x=3
hence, b1=7x
=7×3
=21cm
b2=5x
=5×3
=15cm
hope this helps...
here's ur answer...
let the parallel sides be 7x and 5x.
area of the trapezium=252cm²
1/2×h(b1+b2)=252cm²
1/2×14(7x+5x)=252cm²
7×12x=252cm²
12x=252/7
12x=36
x=36/12
x=3
hence, b1=7x
=7×3
=21cm
b2=5x
=5×3
=15cm
hope this helps...
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