Area of a rectangle is 800 cm² and its length is two third of its breadth. Find its length and breadth
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Answer:
let l=x
b=x/2
Area=800cm²
l×b=800
x × x/2=800
x²/2=800
x²=800×2
x²=√1600
x=40
l=40cm
b=40/2
=20cm
perimeter=2(l+b)
=2(40+20)
=2(60)
=120cm
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