The radius of a sphere is 1.41 cm. Its volume to an appropriate number of significant figures is

Radius of the sphere, r = 1.41 cm(3 significant figures)Volume of the sphere, V = 43πr3 = 43 ×3.14×1.143                                                  = 11.736 cm3Rounded off up to 3 signifiant figures = 11.7 cm3