the length of a rectangular hallway and is 3 time its breadth. If the perimeter of the hallway is 48 m. find it length and breadth
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Answered by
17
breadth=b
length=3b
perimeter=(2×3b)+(2×b)=48
8b=48
b=48/8=6
length=3b=3×6=18
length=3b
perimeter=(2×3b)+(2×b)=48
8b=48
b=48/8=6
length=3b=3×6=18
Answered by
4
X=3y............(1)
2(x+y)=48.........(2)
2(3y+y)=48
2(4y)=48
4y=24
Y=6
X=18
2(x+y)=48.........(2)
2(3y+y)=48
2(4y)=48
4y=24
Y=6
X=18
Similar questions
Hence the length is 3x
But perimeter of rectangle = 2(l+b)
So,48m = 2(x+3x)
48m= 2(4x)
48m = 8x
48/8=x
6=x
therefore breadth is 6m and length is 18 m