Elements of Geometry and Trigonometry |
From inside the book
Results 1-5 of 19
Page 251
Wanting to know the distance between two inaccessible objects which lie in a direct line from the bottom of a tower of 120 feet in height , the angles of depression are measured , and found to be , of the nearest , 57 ° ; of the most ...
Wanting to know the distance between two inaccessible objects which lie in a direct line from the bottom of a tower of 120 feet in height , the angles of depression are measured , and found to be , of the nearest , 57 ° ; of the most ...
Page 274
Thus , when we say that a square yard contains 9 square feet , we should understand that one square foot is taken for the unit of measure , and that this unit is contained 9 times in the square yard . The most convenient unit of measure ...
Thus , when we say that a square yard contains 9 square feet , we should understand that one square foot is taken for the unit of measure , and that this unit is contained 9 times in the square yard . The most convenient unit of measure ...
Page 275
To find the area of a triangle , whose base is 625 and altitude 520 feet . Ans . 162500 sq . ft . 2. To find the number of square yards in a triangle , whose base is 40 and altitude 30 feet . Ans . 663 . a triangle , whose Ans . 68.7361 ...
To find the area of a triangle , whose base is 625 and altitude 520 feet . Ans . 162500 sq . ft . 2. To find the number of square yards in a triangle , whose base is 40 and altitude 30 feet . Ans . 663 . a triangle , whose Ans . 68.7361 ...
Page 276
What is the number of square yards in a triangle of which the sides are 25 feet and 21.25 feet , and their included angle 45 ° ? Ans . 20.8694 . CASE III . When the three sides are known . RULE . - 1 . Add the three sides together ...
What is the number of square yards in a triangle of which the sides are 25 feet and 21.25 feet , and their included angle 45 ° ? Ans . 20.8694 . CASE III . When the three sides are known . RULE . - 1 . Add the three sides together ...
Page 277
45 half - sum . 40 5 3d rem . Then , 45 x 25 x 15 × 5 = 84375 . The square root of which is 290.4737 , the required area . 2. How many square yards of plastering are there in a triangle whose sides are 30 , 40 , and 50 feet ?
45 half - sum . 40 5 3d rem . Then , 45 x 25 x 15 × 5 = 84375 . The square root of which is 290.4737 , the required area . 2. How many square yards of plastering are there in a triangle whose sides are 30 , 40 , and 50 feet ?
What people are saying - Write a review
We haven't found any reviews in the usual places.
Other editions - View all
Common terms and phrases
ABCD adjacent altitude base become Book called centre chord circle circumference circumscribed common cone consequently contained Cosine Cotang cylinder described determine diameter difference distance divided draw drawn equal equations equivalent expressed extremities faces feet figure follows formed four frustum give given gles greater half hence homologous hypothenuse included inscribed intersection less let fall logarithm manner means measured meet middle multiplied number of sides opposite parallel parallelogram pass perpendicular plane polygon prism PROBLEM Prop proportional PROPOSITION pyramid quadrant quantities radii radius ratio reason rectangle regular remaining right angles Scholium segment sides similar Sine solid solid angle sphere spherical triangle square straight line suppose taken Tang tangent THEOREM third triangle triangle ABC unit vertex whole
Bibliographic information
| Title | Elements of Geometry and Trigonometry DAVIES' COURSE OF MATHEMATICS |
| Author | Adrien Marie Legendre |
| Editor | Charles Davies |
| Translated by | David Brewster |
| Publisher | A.S. Barnes and Company, 1839 |
| Original from | Harvard University |
| Digitized | 14 Jan 2008 |
| Length | 359 pages |
| Export Citation | BiBTeX EndNote RefMan |