" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
phi x R2 x T = 48.510
R = 21 cm
D = 42 cm
b) luas selimut = 2 phi x R x T = 2 x 22/7 x 21 x 35 =4620 cm2
luas permukaan = 2 phi x R (R+T)
=2 x 22/7 x 21 (21 + 35)
= 7392 cm2