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.​