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Skills Practice Workbook - Glencoe

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13–5<br />

<strong>Skills</strong> <strong>Practice</strong><br />

Sine and Cosine Ratios<br />

Find each sine or cosine. Round to four decimal places, if necessary.<br />

A 25<br />

B<br />

11<br />

C<br />

29<br />

F 20<br />

1. sin B 0.3793 2. cos C 0.3793 3. cos B 0.8621<br />

4. sin D 0.7143 5. sin F 0.7143 6. cos G 0.3500<br />

Find each missing measure. Round to the nearest tenth.<br />

7. 8. 40 m<br />

9.<br />

x ft<br />

14.9 17.8 57.6<br />

10. 11. 74 m<br />

12.<br />

5 cm<br />

52°<br />

x cm<br />

3.1 71.6 68.2<br />

13. 19 mm<br />

14. 15.<br />

23 mm<br />

34 ft<br />

55.7 35.5 25.4<br />

28<br />

26° 42 m<br />

x°<br />

NAME DATE PERIOD<br />

78 m<br />

70 km<br />

© <strong>Glencoe</strong>/McGraw-Hill 78 Geometry: Concepts and Applications<br />

D<br />

20<br />

E<br />

86 km<br />

x°<br />

x°<br />

G<br />

14<br />

40<br />

K 36 H<br />

x°<br />

15 cm<br />

28 cm<br />

x° 78 in. 84 in.<br />

x°<br />

x°<br />

7 ft<br />

3 ft

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