The area of a trapeziums
210cm² and its height
is 14cm . If one of the
Parallel sides is double
that of the other find the
two Parallel Sides.
Answers
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10,20cm is the answer
area of the trapezium =210cm square
height =14cm
let one side of trapezium be x
area of a trapezium =1/2*(b1+b2)*height
therefore 210=1/2*(x+2x)*14
210=1/2*3x*14
210=3x*7
210/7=3x
30/3=x
10=x
ATQ
if x = 10cm then the other side =2x =2*10=20
this is your answer
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