Question

12. The sides of a rectangle are in the ratio 5 : 4 and its perimeter is 90 cm. Find its length and
breadth.​

Answer 1

Answer:

lenth=25cm

breth=20cm

Step-by-step explanation:

let sides be x so,

2(l+b)=90

2(5x+4x)=90

9x=90/2

9x=45

x=45/9

x=5cm

Answer 2

Answer:

length is 25cm and breadth is 20 cm

Step-by-step explanation:

5:4 ×5 =25:20

Perimeter=2(l+b)

Perimeter=2(25+20)

=2×45

Perimeter =90

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