Question

the length of a square is increased by 40% while breadth is decreased by 40% find the ratio of the area of the resulting rectangle so formed to that of the original square .​

Answer 1

Answer:

25:21

Step-by-step explanation:

It is being given in the attachment

Answer 2

Answer:

$\dfrac{A_2}{A_1} = 0.84$

Step-by-step explanation:

given,

Length of the square be = L

Breadth of the square = B

Area, A₁ = L B

length of square is increase by 40 %

new length, L' = 1.4 L

breadth of square is decreased by 40 %

new Breadth, B' = 0.6 B

New area will be equal to

A₂ = 1.4 L x 0.6 B

A₂ = 0.84 LB

A₂ = 0.84 A₁

$\dfrac{A_2}{A_1} = 0.84$