7.2 Length, Area, and Volume 425 Since 1 m 1 000 000 cm , 3 3 = a cubic meter is one million times larger than a cubic centimeter. b) Work part (b) in a similar manner (Fig. 7.13 ). A dekameter is 10 meters. Thus, = × × = × × = V l w h 10 m 10 m 10 m 1000 m3 Since = 1 dam 1000 m , 3 3 a cubic dekameter is one thousand times larger than a cubic meter. Now try Exercise 81 10 m 1 dam 10 m 1 dam 10 m 1 dam Figure 7.13 7 Learning Catalytics Keyword: Angel-SOM-7.2 (See Preface for additional details.) Instructor Resources for Section 7.2 in MyLab Math • Objective-Level Videos 7.2 • PowerPoint Lecture Slides 7.2 • MyLab Exercises and Assignments 7.2 Exercises Warm Up Exercises In Exercises 1–10, fill in the blanks with an appropriate word, phrase, or symbol(s). 1. Millimeters, mm, are a measure of ______. Length 2. Cubic meters, m ,3 are a measure of ______. Volume 3. Hectares, ha, are a measure of ______. Area 4. Centimeters, cm, are a measure of ______. Length 5. Kilometers, km, are a measure of ______. Length 6. Kiloliters, k , are a measure of ______. Volume 7. Cubic centimeters, cm ,3 are a measure of ______. Volume 8. Square meters, m ,2 are a measure of ______. Area 9. Cubic kilometers, km ,3 are a measure of ______. Volume 10. Meters, m, are a measure of ______. Length Practice the Skills In Exercises 11–18, indicate the metric unit of measurement that you would use to express the following. 11. The length of a pencil Centimeters 12. The distance between freeway exits Kilometers 13. The height of the U.S. Capitol building Meters 14. The diameter of a quarter Centimeters or millimeters 15. The length of a newborn infant Centimeters 16. The length of an adult whale Meters 17. The distance to the moon Kilometers 18. The length of a moth Centimeters or millimeters In Exercises 19–24, choose the best answer. 19. The distance traveled by a home run ball in a major league baseball stadium is about how far? a) 120 hm b) 120 km c) 120 m 20. The length of a shoe lace is about how long? a) 76 cm b) 76 dm c) 76 m 21. The distance between Orlando, Florida, and Boston, Massachusetts, is about how far? a) 2070 cm b) 2070 m c) 2070 km (c) (a) (c) SECTION 7.2 Tischenko Irina/ Shutterstock
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