Books Books
Find an expression for the area of a triangle in terms of the coordinates of its angular points.
The Principles of Analytical Geometry ... - Page 68
by Henry Parr Hamilton - 1826 - 326 pages

## A Treatise on the Application of Analysis to Solid Geometry

Duncan Farquharson Gregory, William Walton - Geometry, Analytic - 1845 - 276 pages
...planes, and then to take the sum of these projections projected on the second plane. (20) To cxpress the area of a triangle in terms of the coordinates of its angular points. This may be most conveniently done by first finding the projection of the area of a triangle, one of...

## A treatise on the application of analysis to solid geometry, commenced by D ...

Duncan Farquharson Gregory - 1845 - 360 pages
...planes, and then to take the sum of these projections projected on the second plane. (20) To express the area of a triangle in terms of the coordinates of its angular points. This may be most conveniently done by first finding the projection of the area of a triangle, one of...

## The Mathematician, Volume 1

1845
...quadrilateral, PB the positive axis of x, and the points A, B, C, D, respectively, Now the expression for the area of a triangle in terms of the co-ordinates of its three angular points (#1^1, x^y- a .r 3 ^ 3 ) in reference to rectangular axes is ( Young's Analytical...

## A collection of examples in pure and mixed mathematics, with hints and ...

Alfred Wrigley - 1852 - 330 pages
...36. Find the area included between the lines, x—y = o, x + y = o, x—y = a, x + y=b. 3?. Express the area of a triangle in terms of the coordinates of its angular points a, b ; a', b' ; a", 6". II. CIRCLE. 38. Find the equation to a circle referred to oblique axes. 39....

## Arithmetic, algebra, differential and integral calculus, by W. Rutherford ...

Royal Military Academy, Woolwich - Mathematics - 1853 - 472 pages
...then will these lines meet in the same point on В К produced. Prove this by coordinates. 5. Express the area of a triangle in terms of the coordinates of its three angles. 6. Three lines AB, AC, AD, which emanate from the same point A, are given in position....

## A Treatise on Plane Co-ordinate Geometry: With Numerous Examples ...

Isaac Todhunter - Geometry - 1855 - 299 pages
...require the co-ordinates of a point midway between two given points ; then nl = w2 and 11. To express the area of a triangle in terms of the coordinates of its angular points. Let ABC be a triangle ; let ^ yv be the co-ordinates of x those of B ; x3, y3, those of C. Draw the...

## A History of the Progress of the Calculus of Variations During the ...

Isaac Todhunter - Calculus of variations - 1861 - 578 pages
...rfy/r [74. There are two methods of arriving at this result ; we may take the ordinary expression for the area of a triangle in terms of the co-ordinates of its angular points, and substitute the values of the co-ordinates just given. Or we may proceed thus — find the area...

## A Treatise on Plane Co-ordinate Geometry as Applied to the Straight Line and ...

Isaac Todhunter - Conic sections - 1862 - 344 pages
...require the co-ordinates of the point midway between two given points ; then nt = nt and 11. To express the area of a triangle in terms of the coordinates of its angular points. Let ABC be a triangle; let a^, y. be the co-ordinates of A ; a;,, yt those of B; xt, yt those of 0....