Question

The Perimeter of Semicircle, whose radius is, 7 cm
(a) 32 cm
(b) 36 cm
(C)38 cm o
(i) None of these​

Answer 1

Answer:

36 cm

Step-by-step explanation:

Perimeter of semi-circle = Diameter + 1/2Perimeter of circle

Diameter = 2x radius = 14

1/2 Peremeter of circle = 1/2 x 2 x 22/7 x 7

                                      = 22

Therefore, 22+14 = 36 cm

Answer 2

Answer:

b) 36 cm

circumference of a semicircle= 35.98 = 36cm

Step-by-step explanation:

circumference of a circle= πr + 2r

= 3.14×7 + 2×7

= 35.98 cm

= 36cm