Question

tolong di jwb yh guys​

Answer 1

Diameter 14 cm → jari² 7 cm

Maka,

K = ¼ × 2 × π × r + 2 × r
K = ¼ × 2 × 22/7 × 7 + 2 × 7
K = ¼ × 44 + 2 × 7
K = 11 + 2 × 7
K = 11 + 14
K = 25 cm

Jadi, jawabannya adalah 25 cm

Semoga membantu
Answer by Tee Kay

Answer 2

K = ¼(2πr) + 2r

K = ½πr + 2r

K = ½ × 22/7 × 14 + 2(14)

K = ½ × 22 × 2 + 28

K = 22 + 28

K = 50 cm