Plane trigonometry, by S.L. Loney.

ANSWERS. Xiii
XXXII. (Page 208.)
1. 7:9:11. 4. 79-063.
5. 1 mile; 1-219714... miles. 7. 20-97615... ft.
8. 6-85673... and 5-4378468... miles. 9. 404-4352 ft.
10. 233-2883 yards. 11. 2229-02 yards.
XXXIII. (Pages 213-216.)
1. 100 ft. high and 50 ft. broad; 25 feet.
2. 25-783414 yds. 3. 33-07... ft.; 171ft.
4. 18-3... ft. 5. 120ft. 6. h tan a cot /.
7. 1939-2... ft. 8. 100 ft. 9. 61-224... ft.
10. 100,/2 ft.
15. PQ = BP = BQ = 1000 ft.; AP= 500 (/6 - J2) ft;
AQ = 1000 /2 ft.
16. -32119 miles.
17. -1736482 miles; -9848078 miles.
18. 119-2862 ft. 19. 132-266 ft.
20. 141-682 yds. 21. 1-42771 miles.
22. 125-3167 ft.
XXXIV. (Pages 220-225.)
3. 20ft; 40ft.
2
4. 1 cosec y, where y is the sun's altitude; sin y =.
5. 3-732... miles; 12-342... miles per hour at an angle,
whose tangent is /3 + 1, S. of E.
6. 10-2426... miles per hour.
7. 16-3923... miles; 17-394... miles.
8. 2-39 miles; 1'366 miles.
2 9
9. It makes an angle whose tangent is; 2 hour.
13. c sin 3 cosec (a + 3); c sin a sin, cosec (a + ).
a 2a
14. 9 yds.; 2 yds. 17. a
3' 3~