Skills Practice Workbook - Glencoe
Skills Practice Workbook - Glencoe
Skills Practice Workbook - Glencoe
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11–6<br />
Area of a Circle<br />
NAME DATE PERIOD<br />
<strong>Skills</strong> <strong>Practice</strong><br />
Find the area of each circle to the nearest hundredth.<br />
1. r � 10 in. 2. r � 18 cm 3. r � 4 mm<br />
314.16 in 2 1017.88 cm 2 50.27 mm 2<br />
4. d � 50 ft 5. d � 6 in. 6. d � 30 m<br />
1963.50 ft 2 28.27 in 2 706.86 m 2<br />
7. C � 31.42 yd 8. C � 131.95 m 9. C � 232.48 ft<br />
78.56 yd 2 1385.51 m 2 4300.92 ft 2<br />
10. r � 1 mi 11. d � 90 m 12. C � 628.32 ft<br />
3.14 mi 2 6361.73 m 2 31,416.07 ft 2<br />
13. d � 300 ft 14. r � 6 in. 15. C � 150.80 m<br />
70,685.83 ft 2 113.10 in 2 1809.64 m 2<br />
A circle has a radius of 10 inches. Find the area of a sector whose central angle has<br />
the following measure. Round to the nearest hundredth.<br />
16. 90° 17. 30° 18. 120°<br />
78.54 in 2 26.18 in 2 104.72 in 2<br />
19. 45° 20. 60° 21. 135°<br />
39.27 in 2 52.36 in 2 117.81 in 2<br />
22. 100° 23. 150° 24. 70°<br />
87.27 in 2 130.90 in 2 61.09 in 2<br />
© <strong>Glencoe</strong>/McGraw-Hill 66 Geometry: Concepts and Applications
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