the area of a trapezium is 143cm² and it's height is 13 cm. if one of the parallel sides is longer than the other by 3 cm, find the two parallel sides.
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Area of trapezium= 143 cm^2
It’s height. h=13 cm
One of the parallel a=x cm
Side
Other parallel side b =(x+3). Cm
Area of trapezium =(a+b)h/2
143=(x+x+3)x13/2
143x2=(2x+3)/13
(143x2)/13=2x+3
11x2=2x+3
2x==22-3
2x=19
x=9.5cm
One of the parallel side=. 9.5 cm
The other side. =12.5 cm
It’s height. h=13 cm
One of the parallel a=x cm
Side
Other parallel side b =(x+3). Cm
Area of trapezium =(a+b)h/2
143=(x+x+3)x13/2
143x2=(2x+3)/13
(143x2)/13=2x+3
11x2=2x+3
2x==22-3
2x=19
x=9.5cm
One of the parallel side=. 9.5 cm
The other side. =12.5 cm
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