Ea basic CH5

Question 1

1. What tool can divide a line into more than two equal parts by trial and error? (Page 5-6)

Answer 1

divider

Question 2

2. What is the term for dividing and angle in half? (Page 5-8)

Answer 2

bisect

Question 3

3. In an equilateral triangle how many degrees does each angle measure? (Page 5-10)

Answer 3

60

Question 4

4. What type of figure is one that encloses another figure? (Page 5-11)

Answer 4

circumscribed plane

Question 5

5. What type of figure is one that is enclosed by a circumscribed figure? (Page 5-11)

Answer 5

inscribed plane

Question 6

6. What is a curve that is made up of a series of successive tangent circular arcs? (Page 5-24)

Answer 6

compound curve

Question 7

7. What type of curve is composed of two consecutive tangent circular arcs that curve in opposite directions? (Page 5-24)

Answer 7

reverse/ogee

Question 8

8. The basic uniform noncircular curves are the ellipse, parabola, and what else? (Page 5-25)

Answer 8

hyperbola

Question 9

9. The three most common methods of constructing ellipses include pin-and-string, four center, and what else? (Page 5-26)

Answer 9

concentric-circle