" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
d = 14cm
Luas lingkaran x sudut juring/360derajat = luas juring
14x14x22/7x1/3 = 44x14x1/3 = 205,3 cm2