A toy is in the form of a cone mounted on a hemisphere. The radius of the hemisphere and that of the cone is 7 cm and height of the cone is 5 cm. The total surface area of the toy (take π =\(22\over7\)) is (rounded off to two places of decimal):
A toy is in the form of a cone mounted on a hemisphere. The radius of the hemisphere and that of the cone is 7 cm and height of the cone is 5 cm. The total surface area of the toy (take π =\(22\over7\)) is (rounded off to two places of decimal):
1
2648.81 cm2
2
2666.85 cm2
3
497.25 cm2
4
486.65 cm2