The length and breadth of a rectangular plot are in the ratio 4:5. If the perimeter of the plot is 360m, find its length and breadth also find the area of the plot?
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let the length and breath be 4x and 5x
2 (4x+5x)=360
4x+5x=360/2
9x=180
x=180/9
x=20
length = 4×x
= 4×20
=80
breadth =100
area of plot =l×b
= 80×100
=8000
MARK AS BRAINLIST ANSWER
2 (4x+5x)=360
4x+5x=360/2
9x=180
x=180/9
x=20
length = 4×x
= 4×20
=80
breadth =100
area of plot =l×b
= 80×100
=8000
MARK AS BRAINLIST ANSWER
Answered by
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Answer:
Step-by-step explanation:
L/B=4/5
5L-4b=0......1
2(L+b)=360
L+b=180.......2
By elimination method
5L-4b=0
5L+5b=900
-9b=-900
b=100
L+b=1800
L+100=180
L=80
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