The perimeter of the rectangle is 216 cm. If it's length and breadth are in the ratio 4:5, find it's dimensions and it's area.
Answers
Answered by
5
let l be 4x
let b be 5x
perimeter=2(l+b)
216/2=4x+5x
108=9x
108/9=x
12=x
l=48
b=60
area=lxb
=48x60
=2880
Please give it brainliest answer
thank you
let b be 5x
perimeter=2(l+b)
216/2=4x+5x
108=9x
108/9=x
12=x
l=48
b=60
area=lxb
=48x60
=2880
Please give it brainliest answer
thank you
Answered by
6
Let the angle be 4x and 5x
Now,2(4x+5x)=216
2×9x=216
18x=216x
x=216/18
x=12
Now,put the value
4×12=48cm
5×12=60cm
so, 48cm and 60cm are the dimensions of rectangle
Area of rectangle=l×b
so,48×60=2880 cm²
Now,2(4x+5x)=216
2×9x=216
18x=216x
x=216/18
x=12
Now,put the value
4×12=48cm
5×12=60cm
so, 48cm and 60cm are the dimensions of rectangle
Area of rectangle=l×b
so,48×60=2880 cm²
Dushyant72:
give me brainliest answer plz
let the length and breadth be 4x and 5x
first line of the answer us that
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