area of parallelogram is 40m².its base is 2/5 of its altitude.find it's altitude
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let the altitude of a parallelogram be X
2/3ofx
2/3x
area of parallelogram =b*h
40=2/3+x
40*3/2=x
20*3=x
60=x
base of a parallelogram =2/3 of its altitude.
2/3*60
2*20
40.
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