Question

A wire is cut into several pieces.Each of the small pieces is bent into a square of side 2cm .If the total area of small square is 28sq.cm,then the original length of wire (in cm)is what

Answer 1

i think its :
each square's area = 4cm sq.
no. of sqare = 28/4
= 7
perimeter of each square = 8cm
total wire = 7×8
= 56cm

Answer 2

Answer:

Total length of the wire = 56 cm

Step-by-step explanation:

Let number of pieces = x

Side of each square shaped piece = 2 cm

⇒ Area of each piece = side²

⇒ Area = 2²

⇒ Area = 4 cm²

Total area is given to be = 28 cm²

Since number of pieces are let to be x

⇒ 4x = 28

⇒ x = 7

Number of pieces = 7

Now, perimeter of each piece with side 2 cm = 4 × 2 = 8 cm

Therefore, Total length of the wire = 7 × 8 = 56 cm