the length and breadth of a room are in the ratio 3:2 . if its area is 216m2 , then it's perimeter equals?
Answers
Answered by
4
let length&breadth be 3x&2x
area of rectangle=l×b
=3x×2x
=6x^2
6x^2 = 216
x=6
perimeter of rectangle= 2 (l+b)
l=3x
=18
b=12
perimeter=2 (18+12)
=60
area of rectangle=l×b
=3x×2x
=6x^2
6x^2 = 216
x=6
perimeter of rectangle= 2 (l+b)
l=3x
=18
b=12
perimeter=2 (18+12)
=60
Answered by
5
HEY DEAR...
YOUR ANSWER⬇
Let the length be = 3x.
Let the breadth be = 2x.
Area = (3x)(2x) = 216m².
= 6x² = 216.
= x² = 216/6.
= x = 6 m.
=> l = 3(6) = 18m.
=> b = 2(6) = 12m.
We know that :
perimeter of a rect. = 2(l+b).
= 2(18+12).
= 60m.
I HOPE YOU FIND IT HELPFUL.
# YOUR FRIEND ; )
YOUR ANSWER⬇
Let the length be = 3x.
Let the breadth be = 2x.
Area = (3x)(2x) = 216m².
= 6x² = 216.
= x² = 216/6.
= x = 6 m.
=> l = 3(6) = 18m.
=> b = 2(6) = 12m.
We know that :
perimeter of a rect. = 2(l+b).
= 2(18+12).
= 60m.
I HOPE YOU FIND IT HELPFUL.
# YOUR FRIEND ; )
Similar questions