" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Kell = phi x d = 22/7 x 42 = 132 cm
= 2 x 22/7 x 21
= 44 x 3
= 132 cm
luas = π x r²
= 22/7 x 21 x 21
= 66 x 21
= 1386 cm²