" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
r^3 = 113.040 × 3 : 4 × 3,14
r^3 = 339.12 × 12,56
r^3 = 27
r = 3
Lp = 4 × 3,14 × r × r
= 4 × 3,14 × 3 × 3
= 12,56 × 9
= 113.04 cm^2
113040 cm³ = 4/3×3,14×r³
113040 cm³×3/4 =3,14×r³
84780cm³/3,14 =r³
r³ =∛27000cm³
r = 30 cm
maka luas permukaan bola:
4××r²= 4×3,14×(30cm)²
=11304 cm²