Maths(area and volume)

Let r be the radius of the sphere.The volume of the cylindrical vessel of base diameter 64cm(so radius = 64/2 cm) of height 2/3cm= The volume of the the sphere :
π(64/2)² (2/3) = (4/3) π r ³32² = 2 r³r³ = 512r = 8 cm


2011-02-04 13:07:11 補充：
1. I mean the volume of the cylindrical vessel of base diameter 64cm of
height = the water level rises equal to the volume of the sphere.

2. The volume of the water rising part equal to the volume of the sphere.