Page:An introduction to linear drawing.djvu/68

 ﻿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 ?