Αναζήτηση Εικόνες Χάρτες Play YouTube Ειδήσεις Gmail Drive Περισσότερα »
Είσοδος
 Βιβλία Βιβλία
At 170 feet distance from the bottom of a tower, the angle of its elevation was found to be 52° 30' : required the altitude of the tower ? Ans.
The Theory and Practice of Surveying: Containing All the Instructions ... - Σελίδα 209
των Robert Gibson - 1821 - 544 σελίδες
Πλήρης προβολή - Σχετικά με αυτό το βιβλίο

## A Treatise on Mensuration, Both in Theory and Practice

Charles Hutton - 1788 - 703 σελίδες
...bottom, 18*" 30': required the depth of the well. Anf. 17-8 9 feet. QUEST, ii. At 85 feet diftance from the bottom of a tower, the angle of its elevation...be 52° 30' : required the altitude of the tower. Anf. 1 1 ol- feet. QUEST. 12. At a certain place the angle of elevation of an inacceflible tower was...

## A Course of Mathematics: In Two Volumes. For the Use of Academies ..., Τόμος 2

Charles Hutton - 1807
...the whole maypole, supposing the broken piece to measure 39 feet in length ? Ans. 75 feet. EXAM. x. At 170 feet distance from the bottom of a tower, the...52° 30' : required the altitude of the tower ? Ans. 221-55 feet. EXAM. xi. From the top of a tower, by the sea-side, of 1 43 feet high, it was observed...

## A Course of Mathematics: In Three Volumes : Composed for the Use of the ...

Charles Hutton - 1811
...the whole maypole, supposing the broken piece to measure 39 feet in length? Ans. 75 feet. EkAM. x. At 170 feet distance from the bottom of a tower, the angle of its elevation was found to be 52° SO' : required the altitude of the tower ? ' Ans. 221-55 feet. EXAM. xi. From the top of a tower, by...

## A Course of Mathematics: For the Use of Academies as Well as ..., Τόμος 1

Charles Hutton - 1812
...measure 39 feet in length ? Ans. 75 feet. EXAM. x. At 170 feet distance from the bottom of a •.owcr, the angle of its elevation was found to be 52° 30' : required the altitude of the tower ? Ans. 221-55 feet. EXAM. xi. From the top of a tower, by the sea-side, of 1 43 feet high, it was observed...

## A Treatise on Surveying, Containing the Theory and Practice: To which is ...

John Gummere - 1814 - 346 σελίδες
...feet, one of the parts ; and 100 — 55.77 *= 44.23 feet, the other part. PRACTICAL QUESTIONS. 1. At 85 feet distance from the bottom of a tower, the angle of its elevation was found to he 52° 30' : required the altitude of the tower. Ans. 110.8 feet. 2. To find the distance of an inaccessible...

## A Treatise on Surveying: Containing the Theory and Practice : to which is ...

John Gummere - 1817 - 206 σελίδες
...feet, one of the parts ; and 100 — 55.77 = 44.23 feet, the other part. PRACTICAL QUESTIONS. 1. At 85 feet distance from the bottom of a tower, the angle...52° 30' : required the altitude of the tower. Ans. 110.8 feet. 2. To find the distance of an inaccessible object, I measured a line of 73 yards, and at...

## A Course of Mathematics: For the Use of Academies, as Well as Private Tuition

Charles Hutton - 1818
...whole maypole, supposing the broken piece to measure 39 feet in length ? Ans. 75 feet. EXAM. r. At 1J70 feet distance from the bottom of a tower, the angle of its elevation was found to be 52° 3' : required the altitude of the tower ? Ans. 221 -5ft feet. EXAM. xi. From the top of a tower, by...

## A Course of Mathematics: For the Use of Academies, as Well as Private ...

Charles Hutton - 1822
...the whole maypole, supposing the broken piece to measure 39 feet in length ? Ans. 75 feet. EXAM. x. At 170 feet distance from the bottom of a tower, the...52° 30' : required the altitude of the tower ? Ans. 2? 1-55 feeU EXAM, xi From the top of a tower, by the sea-side of 14S feet high, it was observed that...

## A Course of Mathematics for the Use of Academies: As Well as ..., Τόμος 1

Charles Hutton - 1825
...the whole maypole, supposing the broken piece to measure 39 feet in length ? ADS. 75 feet. EXAK. x. At 170 feet distance from the bottom of a tower, the angle of its elevation was found to be 52° 3O' : required the altitude of the tower? Ans. 221-55 leet. EXAM. xi. From the top of a tower, by the...

## The Theory and Practice of Surveying: Containing All the Instructions ...

Robert Gibson - 1832 - 348 σελίδες
...above angle FAE may be had without a secant, as before. Thus: AE: R: : AF : S.AEF. 1.325 90° 1.15 60° 13'. Its complement 29° 47' will give FAE, as before....the angle of depression of a ship's bottom, then at anchor, measured 35°. What then was the ship's distance from the bottom of the wall ? Ans. 204.22...