keliling bangun datar diatas adalah

keliling busur lingkaran 180°
= 180/360 x phi x d
= 1/2 x 22/7 x 14
= 1/2 x 22 x 2
= 11 x 2
= 22cm

k = 14 + 14 + 14 + 22
k = 42 + 22
k = 64cm

k = 14 + 14 +14 +14 + 1/2 lingkaran
= 56 + 22/7 × 7 ×7
= 56 + 154
= 210 cm