Question

when is side of a square was reduced by 2 metre its area become 49 square metre what are the sides of first​

Answer 1

Answer:

Let the side of first square =x meters

Each side of square is reduced by 2 meters

∴ Side of new square =(x−2) meters

Area of new square =49 sq meters

(x−2)

2

=49

(x−2)=±7

x−2=7, x−2=−7

x=7+2, x=−7+2

x=9 x=−5

Not possible

∴ Side of first square =9 meters.

Answer 2

Answer:

9m

Step-by-step explanation:

let side of 1st square = x m

each side of square is reduced by 2

side of new square = (x-2)m

area of new square = 49 sq. m

(x-2)² = 49

x-2= +7,-7

x-2=7, x-2= -7

x = 7+2. , x = 7+2

x= 9. , x= -5

no possible

side of 1st square = 9 m