Question

Please sent correct answer ​

Answer 1

Step-by-step explanation:

Take the breadthof the rectangle to be 4x

then length of the rectangle is 5x

Given area=329 cm²

4x×5x=329

one simplification we get x=4.05

bredth=4×4.05=16.20

length =5×4.05=20.275

Answer 2

let breadth be b

let length be l

b/l = 4:5

b=4x then l also 4x

Area= lb

= 4x × 5x

320= 20x²

x²= 320/20

x²= 16

x = 4

length= 4×4= 16

breadth= 5×4= 20