Page 702 - Basic College Mathematics with Early Integers

Chapter 9 Vocabulary Check

Fill in each blank with one of the words or phrases listed below.

transversal line segment obtuse straight adjacent
right volume area legs acute

right triangle perimeter hypotenuse vertical supplementary
similar congruent square ray angle
line complementary vertex
1. A(n) is a triangle with a right angle.The side opposite the right angle is called the
, and the other two sides are called .
2. A(n) is a piece of a line with two endpoints.
3. Two angles that have a sum of 90° are called angles.
4. A(n) is a set of points extending indefinitely in two directions.
5. The of a polygon is the distance around the polygon.
6. A(n) is made up of two rays that share the same endpoint.The common endpoint is called the
.
7. triangles have the same shape and the same size.
8. measures the amount of surface of a region.
9. A(n) is a part of a line with one endpoint.A ray extends indefinitely in one direction.
10. Area is measured in units.
11. A line that intersects two or more lines at different points is called a(n) .
12. A angle that measures 180° is called a(n) angle.
13. The measure of the space of a solid is called its .
14. When two lines intersect, four angles are formed.Two of these angles that are opposite each other are called
angles.
15. Two of these angles from Exercise 14 that share a common side are called angles.
16. An angle whose measure is between 90° and 180° is called a(n) angle.
17. An angle that measures 90° is called a(n) angle.
18. An angle whose measure is between 0° and 90° is called a(n) angle.
19. Two angles that have a sum of 180° are called angles.
20. triangles have exactly the same shape but not necessarily the same size.

Are you preparing for your test? Don’t forget to take the Chapter 9 Test
on page 690.Then check your answers at the back of the text and use the Chapter Test Prep
Videos to see the fully worked-out solutions to any of the exercises you want to review.
9 Chapter Highlights

Definitions and Concepts Examples

Section 9.1 Lines and Angles

A line is a set of points extending indefinitely in two direc- A B
tions. A line has no width or height, but it does have
·
length.We name a line by any two of its points. Line AB or AB

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