Question

A rectangular wire of length 40 cm and breadth 20 cm is bent in the shape of a
square. The side of the square is
(a) 10 cm
(b) 20 cm
(c) 30 am
(0) 40 cm​

Answer 1

Answer:

20√ 2 cm

Step-by-step explanation:

area of rectangle= l ×b

= 40 × 20

= 800cm²

According to the question

area of rectangle = area of square.

800cm² = a²

20√2 = a

side of square = 20√2

Answer 2

Answer:

c. 30 cm

Step-by-step explanation:

Firstly, take the perimeter of the rectangle

2*( l + b )

2*(40+20)

120

Now you have the perimeter of the square so

4*Side =perimeter

4* x = 120

x=120/4

x=30