" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
keliling = 2.π r
132 /2 = πr
66 = 22/7 . r
66 . 7 / 22 = r
3. 22 .7 / 22 = r
3.7 = r
21 cm = r
Dit : r
Jawab :
K = π . 2 . r
r = K : 2 : π
r = 132 : 2 : 3,14
= 21 cm
Jadi, jawaban untuk pertanyaan tersebut adalah A. 21