Copyright by Holt, Rinehart and Winston. 237 Holt MathematicsAll rights reserved.

Chapter Review9

CHAPTER

9-1 Understanding Customary Units of Measure

What unit of measure provides the best estimate?

1. An ink pen is about 6 long.

2. A horse weighs about 1,000 .

3. A small fish tank holds about 10 of water.

9-2 Understanding Metric Units of Measure

What unit of measure provides the best estimate? Justify your answer.

4. The length of a screwdriver is about 20 .

5. The mass of a full soup can is 305 .

6. A baby bottle holds about 250 of liquid.

9-3 Converting Customary Units

Convert.

7. 33 ft yd 8. 3 pt oz

9. 60 in. ft 10. 20,000 lb T

11. 7 lb oz 12. 192 oz gal

9-4 Converting Metric Units

13. A soda container holds 2 liters. How many milliliters of soda are in thecontainer?

14. A juice glass holds 150 mL. 150 mL L.

15. The length of a driveway is 45 meters. 45 m km.

16. The mass of a brick is 1.5 kg. 1.5 kg g.

Copyright by Holt, Rinehart and Winston. 238 Holt MathematicsAll rights reserved.

9-5 Time and Temperature

Convert.

17. 40 min s 18. 49 days weeks

19. 240 min h 20. 84 mo yr

21. A baseball game which began at 2:10 P.M. lasted 2 hours and 25 minutes.At what time was the game over?

Estimate the temperature.

22. 15C is about F. 23. 84F is about C.

9-6 Finding Angle Measures in Polygons

Estimate the measure of A in each figure. Then use a protractor tocheck the reasonableness of your answer.

24. 25.

26. The shape of a flower garden is shown below. Find the measure of A and B.

9-7 Perimeter

Find the perimeter of each figure.

27. 28.

12 in.

14 in.6 in.

8 cm

4 cm

A

B C

D

B C

A

C D

A B

CHAPTER 9 REVIEW CONTINUED

Copyright by Holt, Rinehart and Winston. 239 Holt MathematicsAll rights reserved.

Find the unknown measure.

29. What is the length of side b if the perimeter equals 50 ft?

30. The width of a rectangle is 6 in. The perimeter of the rectangle is 30 in.What is the length of the rectangle?

9-8 Circles and Circumference

31. Point Q is the center of the circle. Name the circle, a diameter, and threeradii.

32. A landscaping company needs to dig a circular hole for planting a tree. Ifthe diameter of the circular hole is 3 ft, what is its circumference? (Find thecircumference by rounding to 3).

Find each missing value to the nearest hundredth. Use 3.14 for .

33. r 5 cm; C .

34. d 12 in.; C .

Q

R

T

P

S

b

9 ft

11 ft

7 ft

13 ft

CHAPTER 9 REVIEW CONTINUED

Big Ideas9

CHAPTER

Answer these questions to summarize the important concepts fromChapter 9 in your own words.

1. Explain how to convert 108 inches to feet.

2. Explain how to convert 5 weeks to seconds.

3. Explain how to convert 70F to C using estimation.

4. Explain how to find the perimeter of a rectangle with length 4 ft and width 7 ft.

5. Explain how to find the circumference of a circle with radius 6 inches.

For more review of Chapter 9:

Complete the Chapter 9 Study Guide and Review on pages 530532 ofyour textbook.

Complete the Ready to Go On quizzes on pages 508 and 526 of yourtextbook.

Copyright by Holt, Rinehart and Winston. 240 Holt MathematicsAll rights reserved.