Apr 7, 2012 · I have coordinates of 3d triangle and I need to calculate its area. I know how to do it in 2D, but don't know how to calculate area in 3d. I have developed data as follows. (119.91227722167969, …

Jan 26, 2023 · I found a lot of resources of finding the area with $3D$ vectors, but none for $2D$. In this case, I'm not able to follow the steps of finding the cross product first, then magnitude and finally, the …

Apr 3, 2014 · 0 One way to do it would be to first find out the length of each of the 3 sides, by simply applying Pythagorus. e.g. AB = $\sqrt { (2-0)^2 + (1-1)^2 + (4-3)^2}=\sqrt5$ You can do this for all of …

Finding area of a triangle with integrals Ask Question Asked 13 years, 7 months ago Modified 13 years, 7 months ago

Here's an approach that doesn't require any ingenuity or case analysis. Use the Sutherland-Hodgman algorithm to clip one triangle against the other, yielding a (possibly degenerate) polygon representing …

27 Area of a Triangle from the Medians A triangle is divided in to $6$ equal areas by its medians: $\hspace {2cm}$ In the case where the two blue triangles share a common side of the triangle, it is …

Oct 6, 2013 · Heron's formula is inefficient; there is in fact a direct formula. If the triangle has one vertex at the origin, and the other two vertices are $ (a,b)$ and $ (c,d)$, the formula for its area is $$ A = …

Aug 18, 2014 · Direct formula for area of a triangle formed by three lines, given their equations in the cartesian plane. Ask Question Asked 11 years, 3 months ago Modified 3 years, 8 months ago

Jan 31, 2018 · How would I find the area of a triangle, given $3$ side lengths $3$, $4$, and $6$? Would there be any way to do this?

(1) Incidentally, this formula shows that the sum of the angles of a spherical triangle must be greater than or equal to π, with equality holding in case the triangle has zero area.