the length and the breadth of rectangle are the ratio 2.1. if its perimeter is 90cm then find its length and breadth
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the length and the breadth of rectangle are the ratio 2.1. if its perimeter is 90cm then find its length and breadth
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Step-by-step explanation:
length the = 20,breadth=1,perimeter=90, perimeter of rectangle=2(l+b), 90=2(2+1) ,90/2=3, 45=3x, x=45/3=15 , length=2x=2*15=30, breadth=1x=1*15=15
Answer:
the ratio Of length and breadth Is 2:1
let be x
given,
length =2x, breadth =1x
perimeter =90
solution, perimeter =2(length+breadth)
90 CM = 2(2x+1x)
90cm =2*3x
90 CM = 6x
x= 90/6
x= 15
now, length =2*15 =30
breadth =1*15=15