Find the sides of the rectangle whose sides are in the ratio 4:5 and perimeter is 90 cm ? Question Find the sides of the rectangle whose sides are in the ratio 4:5 and perimeter is 90 cm ? in progress 0 Math Gabriella 2 weeks 2021-09-10T15:01:21+00:00 2021-09-10T15:01:21+00:00 2 Answers 0 views 0

## Answers ( )

Given:-To find:-Solution:-Let the length of the rectangle be 4x cm

and breadth of the rectangle be 5x cm

Now,

we know that,

Now,we have

Hence,the sides of the rectangle will be 20 cm and 25 cm.let length =4xcm

breadth= 5xcm

we know perimeter of rectangle= 2(l+b )

90cm = 2(4x+5x)

90= 2(9x)

90=18x

90/18 =x

5=x

•°•length = 4×5= 20cm

breadth = 5×5=25 cm