Question

Find the perimeter of the semi-circular disc of radius 3.5 cm.

Answer 1

Answer:

18cm

Step-by-step explanation:

radius = 3.5cm

perimeter of semicircle =  pi x r + 2r

= 22 x 3.5 / 7 + 2 x 3.5 = 18

Answer 2

Answer:

18 cm

Step-by-step explanation:

radius = 3.5 cm.

perimeter of semi-circle = pi x r + 2r = 22 x 3.5 / 7 + 2 x 3.5 = 18