1. Worksheet Practice 10-5 a = p = n = s = 4.9 7.1 5 35.5 Mrs. Rivas International Studies Charter School.

2. a = p = n = s = 40.6 21.7 12 260.4 Mrs. Rivas International Studies Charter School. Worksheet Practice 10-5

3. a = p = n = s = 2(5.5) = 11 6 66 5.5  3= 9.5262 30º 60º s s3s3 s3s3 Mrs. Rivas International Studies Charter School. Worksheet Practice 10-5

4. a = p = n = s = 90º 45º s s s2s2 = 8 =4  2 4242 8282 4 32  2 Mrs. Rivas International Studies Charter School. Worksheet Practice 10-5

5. 120º 60º 30º s s3s3 a = p = n = s = = 10 10  3 3 20 3 60 = 5.7735 Mrs. Rivas International Studies Charter School. Worksheet Practice 10-5

6. a = p = n = s = 12.6 8 100.8 Mrs. Rivas International Studies Charter School. Worksheet Practice 10-5

7. a b Perimeter = Area = a² b² Mrs. Rivas International Studies Charter School. Worksheet Practice 10-5

8. Area = a² b² 10 ft² 160 ft² = x² 8² 10 ft² 160 ft² = y² 20² 10 ft² 160 ft² = x² 64 x² = 4 x =  4 10 ft² 160 ft² = x² 400 x² = 25 x =  25 Mrs. Rivas International Studies Charter School. Worksheet Practice 10-5

9. 20 ft² 160 ft² = x² 8² 20 ft² 160 ft² = y² 20² 20 ft² 160 ft² = x² 64 x² = 8 x =  8 20 ft² 160 ft² = y² 400 x² = 50 x =  50 Area = a² b² Mrs. Rivas International Studies Charter School. Worksheet Practice 10-5

10. Mrs. Rivas International Studies Charter School. Worksheet Practice 10-5 Find the area of each regular polygon. Round your answers to the nearest tenth. 11. a = p = n = s = a

11. Mrs. Rivas International Studies Charter School. Worksheet Practice 10-5 Find the area of each regular polygon. Round your answers to the nearest tenth. 12. a = p = n = s = a s

12. Mrs. Rivas International Studies Charter School. Worksheet Practice 10-5 Find the area of each regular polygon. Round your answers to the nearest tenth. 13. a = p = n = s = a

13. Mrs. Rivas International Studies Charter School. Worksheet Practice 10-5 14. Find the area of each regular polygon. Round your answers to the nearest tenth. nonagon with radius 6 ft. a = p = n = s = a s

14. Mrs. Rivas International Studies Charter School. Worksheet Practice 10-5 15. Find the area of each regular polygon. Round your answers to the nearest tenth. decagon with radius 5 mm a = p = n = s = a s

15. Mrs. Rivas International Studies Charter School. Worksheet Practice 10-5 Find the area of each triangle. Round your answers to the nearest tenth. 16.

16. Mrs. Rivas International Studies Charter School. Worksheet Practice 10-5 Find the area of each triangle. Round your answers to the nearest tenth. 17.

17. Mrs. Rivas International Studies Charter School. Worksheet Practice 10-5 Find the area of each triangle. Round your answers to the nearest tenth. 18.

18. Mrs. Rivas International Studies Charter School. Worksheet Practice 10-5 Find the area of each triangle. Round your answers to the nearest tenth. 19.

19. Mrs. Rivas International Studies Charter School. Worksheet Practice 10-5 Find the area of each triangle. Round your answers to the nearest tenth. 20.

20. Mrs. Rivas International Studies Charter School. Worksheet Practice 10-5 Find the area of each triangle. Round your answers to the nearest tenth. 21.

21. Mrs. Rivas International Studies Charter School. Worksheet Practice 10-5 22. ABCDEFGH is a regular octagon with center X and radius 6 cm. Find each measure. If necessary, round your answers to the nearest tenth.

22. Mrs. Rivas International Studies Charter School. Worksheet Practice 10-5 Find the perimeter and area of each regular polygon to the nearest tenth. 23. a = p = n = s =

23. Mrs. Rivas International Studies Charter School. Worksheet Practice 10-5 Find the perimeter and area of each regular polygon to the nearest tenth. 24. a = p = n = s =

24. Mrs. Rivas International Studies Charter School. Worksheet Practice 10-5 Find the perimeter and area of each regular polygon to the nearest tenth. 25. a = p = n = s =