Respuesta :

choixongdong
r = 3 so d = 2r = 2 x 3 = 6

C = pi d,
semi-circle C= 1/2 pi d = 1/2 (3.14)(6) = 9.42
P of rectangle = 2(4+6) = 2(10) = 20

so P of figure = 20 + 9.42 = 29.42 m

answer
 29.42 m