Tlng jawab yaa jwban no 18

sisi = 14 => d = 14 => r = 7
Keliling daerah arsir
= 7 + 7 + 3 x 1/4 keliling lingkaran
= 14 + 3/4 . πd
= 14 + 3/4 . 22/7 . 14
= 14 + 3/4 . 44
= 14 + 33
= 47 cm