Question

plz plz plz plz plz slove Mujhe karna Nahin a Raha ??​

Answer 1

Step-by-step explanation:

a. perimeter of semicircle =π r *d

=22/7*7*14

=308

Answer 2

Solution →

Perimeter of 1st shape →

The given shape is Semi circle , So:-

Perimeter of Semi circle = πr + d .

Diameter of Semi circle = 14 cm

So, radius of semi circle = 7 cm

Now according to the formula :-

Perimeter → π ×7+14

Perimeter → 22/7(7)+14

Perimeter → 22 +14

Perimeter → 36 cm

Now in the 2nd shape

It consists 2 semi circle and a rectangle .

So it's perimeter will be → 2πr + 2l

Now ,

Length of rectangle = 14 cm

Radius of semi circle = 3.5 cm

Now according to the formula :-

Perimeter → 2 ×(22/7)×3.5 +2(14)

Perimeter → 22 + 28

Perimeter → 50 cm .

$hope \: it \: helps$