...hours ? 224. From the top of the peak of Tenerifle, the dip of the horizon is found to be 1° 58' 10". If the radius of the earth be 4000 miles, what is the height of the mountain ? 225. What is the dip of the horizon from the top of a mountain 1-J. miles...

...hours ? 27. From the top of the peak of Teneriffe, the dip of the horizon is found to be i° 58' 10". If the radius of the earth be 4000 miles, what is the height of the mountain ? 28. Having given that two points, each 10 feet above the earth's surface,...

.... /. 47. From the top of the peak of Teneriffe the dip of the horizon is found to be 1'. 58' . 10". If the radius of the earth be 4000 'miles, what is the height of the mountain ? 48. What is the dip of the horizon from the top of a mountain 1£ miles high,...

...theorem from either of the formulae for sin ¿.a, cos \A, tan \A, respectively, in terms of the sides. 3. If the radius of the earth be 4000 miles, what is the area of a spherical triangle whose spherical excess is 1°. 4. If A", B", C" be the chordal angles...

...between the lengths of the longest and shortest day at a given place be six hours, find the latitude. 34. If the radius of the earth be 4000 miles, what is the area of a spherical triangle whose spherical excess is 1° ? 35. If A", B", C" be the chordal angles...

...2^0006 Example iii. From the top of the Peak of Teneriffe the dip of the horizon is found to be 1° 58'. If the radius of the earth be 4000 miles, what is the height of the mountain ? In Fig. XLIII C is the centre of the earth, AB is Teneriffe ; JBHia the tangent...

...Taking the more accurate value — = '31831, we have r=176 x -31831 = 56-02256 yards. EXAMPLES. XXXIII. 1. If the radius of the earth be 4000 miles, what...sail whose length is 18 feet makes 10 revolutions per minute. What distance does its end travel in an hour? 4. The diameter of a halfpenny is an inch ; what...