mohkn bantuannya kak

K = 26 + 26 + 26 + 26 + (½ × 22/7 × 28)
K = 104 + 44
K = 148 cm (B)

semoga membantu :)

K = (26 × 4) + (1/2 × 2 × 22/7 × 14)
= 104 + 44 = 148