Basic Mathematics for College Students

802 Chapter 9 An Introduction to Geometry EXAMPLE (^1) How many cubic inches are there in 1 cubic foot? StrategyA figure is help ...

In practice, we do not find volumes of three-dimensional figures by counting cubes. Instead, we use the formulas shown in the ta ...

804 Chapter 9 An Introduction to Geometry 6 m 9 m 6 m EXAMPLE (^4) Find the volume of the pyramid shown on the right. StrategyFi ...

9.9 Volume 805 Self Check 6 Find the volume of the cone shown below. Give the exact answer and an approximation to the nearest h ...

806 Chapter 9 An Introduction to Geometry We can use a scientific calculator to make this calculation. 10 50 2 10 3 3 The volume ...

Which geometric concept (perimeter, circumference, area, or volume) should be applied when measuring each of the following? a. ...

Find the volume of each figure.See Example 4. 10 yd 10 yd 21 yd 47. 48. Find the volume of each cone. Give the exact ans ...

Find the volume of each sphere. Give the exact answer and an approximation to the nearest tenth.See Example 7. TRY ...

30 in. REFRIGERATORS The largest refrigerator advertised in a JC Penny catalog has a capacity of 25.2 cubic feet. How many cubi ...

Chapter 9 Summary and Review 811 CHAPTER 9 SUMMARY AND REVIEW SECTION 9.1 Basic Geometric Figures; Angles The word geometrycomes ...

812 Chapter 9 An Introduction to Geometry An angleis a figure formed by two rays (called sides) with a common endpoint. The comm ...

Chapter 9 Summary and Review 813 Vertical angles are congruent (have the same measure). Refer to the figure below. Find and x m( ...

814 Chapter 9 An Introduction to Geometry In the illustration, give the name of a point, a line, and a plane. REVIEW EXERCISES ...

Chapter 9 Summary and Review 815 SECTION 9.2 Parallel and Perpendicular Lines If two lines lie in the same plane, they are calle ...

816 Chapter 9 An Introduction to Geometry (a) (b) l 3 l 1 l 2 We can use algebra to find the unknown measures of interior angles ...

Chapter 9 Summary and Review 817 7 x − 46° B C A D 2 x + 9° 5 x − 33° H I E G F 3 x + 13° In the figure below,. a. Find x. b. F ...

818 Chapter 9 An Introduction to Geometry The sum of the measures of the angles of any triangle is 180°. We can use algebra to f ...

Chapter 9 Summary and Review 819 c. d. Classify each of the following triangles as an acute, an obtuse, or a right triangle. a. ...

Pythagorean theorem If and are the lengths of the legs of a right triangle and is the length of the hypotenuse, then a^2 b^2 c ...

Chapter 9 Summary and Review 821 REVIEW EXERCISES Refer to the right triangle below. Find , if cm and cm. Find , if ft and ft. ...