8.4 Volume and Surface Area 497 8. 7 yd 7 yd 7 yd a) 343 yd3 b) 294 yd2 9. 12 in. 2 in. a) 150.80 in.3 b) 175.93 in.2 10. 24 in. 6 in. a) 2714.34 in.3 b) 1130.97 in.2 11. 3 cm 14 cm a) 131.95 cm3 b) 163.22 cm2 12. 24 ft 10 ft a) 628.32 ft3 b) 463.63 ft2 13. 9 mi a) 3053.63 mi3 b) 1017.88 mi2 14. 9 cm a) 381.70 cm3 b) 254.47 cm2 In Exercises 15–18, determine the volume of the three- dimensional figure. When appropriate, round your answer to the nearest hundredth. 15. 9 m 6 m 6 m 162 m3 16. 8 in. 10 in. 24 in. 8 in. 12 in. 12 in. 10 in. 2400 in.3 17. 12 cm 12 cm 15 cm 720 cm3 18. 15 ft 13 ft 9 ft 292.5 ft3 Problem Solving In Exercises 19–26, determine the volume of the shaded region. When appropriate, use the π key on your calculator and round your answer to the nearest hundredth. 19. 10 ft 5 ft 5 ft 10 ft 20 ft 1500 ft3 20. 11 in. 4 in. 5 in. 4 in. 21.73 in.3 21. 20.8 cm 7 cm 6.9 cm 284.46 cm3 22. 6 mm 6 mm 6 mm 6 mm 102.90 mm3 23. 8 ft 4 ft 14 ft 7 ft 7 ft 392 ft3
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