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. …

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 …

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 …

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, then …

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

Mar 30, 2024 · Finding Area of $\triangle ABF$ in a Right Triangle with Given Side Lengths and Median Intersection Ask Question Asked 1 year, 8 months ago Modified 1 year, 8 months ago

Sep 8, 2019 · The site Area of the Triangle Formed by Three co-ordinate Points explains and then gives an explicit formula for what you're asking about.

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 …

Apr 2, 2025 · Finding the area of a triangle, given the area of sub-triangles determined by a median perpendicular to an angle bisector Ask Question Asked 8 months ago Modified 8 …

May 27, 2024 · Official Explanation: Can someone please explain the flaws in my attempts and how exactly the solution's author calculated the area of triangles? I can't seem to draw the …