22. What is a prism ? (page IS.)
23. Is it necessary that a prism have any particular number of sides ?
24. What is meant by the height of a prism ?
25. When is a prism said to be upright ?
26. When is a prism said to be oblique ?
27. What is a parallelopiped ? Ans. A prism whose bases are parallelograms.
28. What sort of a paralleopiped is a cube ?
29. Which two faces of a cube should be drawn first ?
30. What is meant by a plane 9
31. How can you easily represent a prism cut by a plane parallel to its bases ? (page 15.)
THIRD CLASS.
1. What is a Radius ? (page 16.)
2. What is the Diameter of a circle ?
2. What is the Arc of a circle ?
4. What is a Cord ?
5. How will you cut a circle into eight equal parts ?
6. What is meant by Concentrick Circles ? (p. 17.)
7. What is meant by the Centre of an Arc ?
8. What does the word Tangent mean ? (p. IS.)
9. What is a Tangent ?
10. What is the Point of Contact ?
11. When is a circle said to be circumscribed with a square ?
12. When is a circle said to be inscribed in a square or any other figure ? (p. 19.^
13. When four tangents make right angles with each other, what figure is formed ?
14. When is a polygon said to be inscribed in a circle ?
