A Write true if the statement is correct and false if it is wrong.
1. Cones have circular bases. 2. All solids have length, width and height. 3. A pyramid is named according to the shape of its base. 4. The volume of a cone is one-third of a cylinder of the same dimensions. 5. To get the height of a sphere double its radius. 6. The face of a cylinder when flattened is a rectangle. 7. A cube has 4 faces. 8. The bases of a cylinder are circles. 9. A sphere is a solid figure. 10. A rectangular prism has 6 vertices.