Pliss jawab caranya difoto aja please yah nanti kalo semuanya aku kasih jawaban terbaik

1.
a. Keliling = 2 x 22/7 x 14

= 44 x 14/7

= 44 x 2

= 88 cm

b. Keliling = 2 x 22/7 x 3,5

= 44 x 3,5/7

= 44 x ½

= 44/2

= 22 cm

c. Keliling = 22/7 x 21

= 22 x 21/7

= 22 x 3

= 66 cm

d. Keliling = 3,14 x 20

= 62,8 cm

1. a. 88 cm
b. 22 cm
c. 66 cm
d. 62, 8 cm