Given:

Side of square = 14 cm

Diameter of semi circle = 14 cm

⇒ Radius of semi circle = = 7 cm

∵ There are 2 semi circles of same radius.

∴ We consider it as one circle with radius 7 cm.

So,

Perimeter of 2 semicircles = Perimeter of circle = 2πr

= 2 × × 7

= 2 × 22 = 44 cm

Perimeter of shaded region = Perimeter of 2 semicircles + 2 × Side of Square = 44 + 2 × 14 = 44 + 28 = 72 cm

Hence, the area of the shaded region is 72 cm.