" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Maka, tentukan nilai r:
Lp = 1.256
1.256 = 4 π r²
1.256 / 4 = π r²
314 = 3,14 x r²
r² = 314 / 3,14
r² = 100
r = √100
r = 10 cm
Karena diameter sama dengan 2 x jari-jari:
d = 2r
d = 2(10)
d = 20 cm
Diameter bola adalah 20 cm.