[" 3.A toy is in the form of a cone of radius "3.5" ell "],[" The total height of the toy is "15,5cm" .Find the total surface area of the tog."],[" 4.Cubical block of side "7cm" is surmounted by a hemisphere.What is the greates "],[" 4.cubical block of side "7cm" is surmounted by a hemisphere.What is the greates "],[" diameter the hemisphere can have? Find the surface area of the solid."],[" Whe intherical depression is cut out from one face of a cubical wooden block suct "]