Question

param cuts a given circular disc of radius 7cm in two equal parts . what is the perimeter of each semicircular shape disc?

Answer 1

Answer: The perimeter of each semicircular shape disc is 36 cm.

Step-by-step explanation:

The radius of the circular disc= 7 cm (given)

Because Param cuts a given disc into two equal parts, so

The perimeter of each semicircular shape disc

= perimeter of semi circle + diameter

We know,

Perimeter of semi circle= pi*r

Plugging the value of r, we get

Perimeter of semi circle= 22/7*7= 22 cm

Diameter= 2*r= 2*7= 14 cm

So,

The perimeter of each semicircular shape disc= 22+14= 36 cm

Answer 2

Answer:

pr. of semicircle=22/7*7=22cm.

diameter=2*r=22/71=14cm.

pr. of each semicircular disc=22+14cm.=36cm.