18. What is a triangle ? (page b.)
19. What is the base of a triangle ?
20. What is the apex of a triangle ?
21. What is the height of a triangle ?
22. What is an Isoceles triangle ?
23. What is an Equilateral triangle ?
24. What is a Scalene triangle ?
25. When a perpendicular is raised on a right line, must the right line be a horizontal ? Ans. No. A perpendicular may be raised on any right line whether horizontal or oblique.
26. What is a rectangular or right angled triangle ?
27. What is a rectangular isoceles triangle ?
28. What is a rectangle ? (page 6.)
29. What is the base of a rectangle ?
30. What is the height of a rectangle ?
31. What is a parallelogram ?
32. Has a parallelogram any right angles ?
33. What angles has a parallelogram ? Ans. Two acute, and two obtuse.
34. What is the height of a parallelogram ?
35. How are the sides of a square ?
36. How are the angles of a square ?
37. When are angles said to be parallel ? Ans. When their openings and points are parallel.
38. How are the sides of a Rhomb or Lozenge ?
39. How are the angles of a Rhomb ?
40. How do you proceed to draw a Rhomb ?(page 9.)
41. What part of a circle does a right angle form ?
42. If a right angle be cut into two equal parts, what part of a circle will each of these parts be ? (page 9.)
