" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
Verified answer
Luas = phi r^21256 = 22/7 r^2
1256x7/22 = r^2
r = akardari 400
r = 20
d = 40
b 40
garis tengah = diameter
22/7 x r² = 1256
r² = 1256 : 3,14
r² = 400
r = √400
r = 20 cm
diameter = 20 x 2 = 40 cm
jawabannya b. 40
maaf kalo salah
jadikan jawaban terbaik yaa hehee