Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Books Books
" In any triangle, the square of the side opposite an acute angle is equal to the sum of the squares of the other two sides, minus twice the product of one of these sides and the projection of the other side upon it. "
Yale University Entrance Examinations in Mathematics: 1884 to 1898 - Page 190
1898 - 208 pages
Full view - About this book

Catalogue ...

Yale University. Sheffield Scientific School - 1905 - 1074 pages
...constructions. 2. In any triangle, the square of the side opposite an acute angle is equal to the sum of the squares of the other two sides, minus twice the...sides and the projection of the other side upon it. 3. The areas of two similar triangles are to each other as the squares of any two homologous sides....
Full view - About this book

Plane and Spherical Trigonometry

James Morford Taylor - Trigonometry - 1905 - 256 pages
...about the triangle ABC. Law of cosines. In any triangle the square of any side is equal to the sum of the squares of the other two sides minus twice the product of these two sides into the cosine of their included angle. In figures 35 regard AD, DB, and A В as directed...
Full view - About this book

Plane Geometry

Edward Rutledge Robbins - Geometry, Plane - 1906 - 268 pages
...346. THEOREM. In any triangle the square of the side opposite an acute angle is equal to the sum of the squares of the other two sides minus twice the product of one of these two sides and the projection of the other side upon that one. Given: (?). To Prove: c2=(?). Proof :...
Full view - About this book

Plane Trigonometry

Daniel Alexander Murray - 1906 - 466 pages
...formulas can be expressed in words : In any triangle, the square of any side is equal to the sum of the squares of the other two sides minus twice the product of these two sides multiplied by the cosine of their included angle. NOTE. In Fig. 49 a, A is acute and...
Full view - About this book

Geometry: Plane Trigonometry. Chain Surveying. Compass Surveying. Transit ...

International Correspondence Schools - Building - 1906 - 634 pages
...memory. 19. The Cosine Principle. — In any triangle, the square of one side is equal to the sum of the squares of the other two sides minus twice the product of these two sides and the cosine of their included angle. That is (Fig. 6), a' = f + c' - 2 bc cos A...
Full view - About this book

Plane Trigonometry

Plane trigonometry - 1906 - 230 pages
...memory. 19. The Cosine Principle. — fn any triangle, the square of one side is equal to the sum of the squares of the other two sides minus twice the product of these two sides and the cosine ot their included angle. That is (Fig. 6), a' = b' + c' - 2 bc cos A...
Full view - About this book

Plane and Solid Geometry

Edward Rutledge Robbins - Geometry - 1907 - 428 pages
...346. THEOREM. In any triangle the square of the side opposite an acute angle is equal to the sum of the squares of the other two sides minus twice the product of one of these two sides and the projection of the other side upon that one. Given: (?). To Prove: c2=(?). Proof:...
Full view - About this book

New Plane and Solid Geometry

Webster Wells - Geometry - 1908 - 336 pages
...THEOREM 255. In any triangle, the square of the side opposite an acute angle is equal to the sum of the squares of the other two sides, minus twice the...sides and the projection of the other side upon it. AA B C B Fio. 1. Fio. 2. Draw acute-angled A ABC ; draw also &ABC having an obtuse angle at B. Let...
Full view - About this book

New Plane Geometry

Webster Wells - Geometry, Plane - 1908 - 208 pages
...THEORKM 255. In any triangle, the square of the side opposite an acute angle is equal to the sum of the squares of the other two sides, 'minus twice the...sides and the projection of the other side upon it. O D B a B Fio. 1. FIG. 2. Draw acute-angled &ABC ; draw also AABC having an obtuse angle at -B. Let...
Full view - About this book

Plane and Solid Geometry

Elmer Adelbert Lyman - Geometry - 1908 - 364 pages
...triangle, the square on the side opposite an acute angle is equivalent to the sum of the squares on the other two sides minus twice the product of one...sides and the projection of the other side upon it. 407. In any obtuse-angled triangle, the square on the side opposite the obtuse angle is equivalent...
Full view - About this book




  1. My library
  2. Help
  3. Advanced Book Search
  4. Download EPUB
  5. Download PDF