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 …

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 …

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 …

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

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 …

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

Feb 17, 2018 · Then you multiply by $-\frac {1} {2}$ to get a positive area of $\frac {3} {2}$. My question is where does $-1$ come from in the second line of the equation and why is it being squared first, …

(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.

This problem requires knowledge of the cross product and how to use it to calculate the area of the triangle enclosed by two vectors from the same point. I recommend watching the following videos: