Question

(Second Question in photo)

Answer 1

Answer:

Option (D). $\frac{\pi }{4}$

Step-by-step explanation:

Perimeter of a square is given by the expression,

P = 4(Side)

Since length of a side of the given square = 2r

P = 4(2r)

  = 8r

Circumference of a circle is represented by,

C = 2πr

Ratio of the Circle' circumference and perimeter of the square = $\frac{C}{P}$

$\frac{C}{P}=\frac{2\pi r}{8r}$

   = $\frac{\pi }{4}$

Therefore, Option (D) represents the ratio of circumference of the circle and perimeter of the square.