Question

The sides of a rectangle are in the ratio 4:5 If the perimeter of the rectangle is 90 cm , find its sides . ​

Answer 1

perimeter of rect = 90cm

2(l+b)=90

l+b = 45

let the ratio be x

4x+5x=45

x=5

one side = 20cm

second side = 25cm

HOPE THIS WILL HELP U

Answer 2

these ur ans

================

********************

ratio of sides is 4:5

let them be 4x n 5x

we know perimeter is 90cm

then formula is 2*(length +breadth)

2*(4x+5x)=90

8x+10x=90

x=90/18

x=5

then 4x is 20

5x is 25

========================

******************************

hope my ans helps

pls mark brainliest