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`the length of a rectangular field is thrice its breath . if the perimeter of this field

800 m what is the length of the field and its area.

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800 m what is the length of the field and its area.

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so length will be 3x

perimeter of a rectangle is 2(l+b)

but here perimeter = 800m

therefore 2(3x+x) = 800m

that equals to 2(4x)=800m

8x=800m

therefore x=800/8

that equal to x=100

now substituting the value

3x=300

x=100

so length=300m

and breath=100m

now area of rectangle = l * b

=> 300*100

=> 30,000msq.

Length = 3x nd breadth x

perimeter =2(3x+x)=800

4x=400

x=100

so length is 300m and breadth is 100m

area=lb

300*100=30000m²