" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
1/4 × phi × d^2 =
1/4 × 22/7 × 42^2 =
1386cm^3
Keliling = phi × d
Keliling = 22/7 × 42
Keliling = 132cm
#semoga membantu.....
Dit:L dan K
Jwb:L=1/4πd^2
=1/4 . 22/7 . 42^2
=22/28 . 1764=1386 cm^2
K=πd
=22/7 . 42=132 cm