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. …

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

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 …

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 …

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 …

Jan 1, 2018 · The problem is that the formula I know would compute me the volume of the triangle. The formula is the determinant of $ ( [A] [B] [C])$ where $ [V]$ represents V in the …

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

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 …

Recently I thought, could you calculate the area of a triangle (scalene) when you have: 2 sides of a triangle with the angle between them. 2 sides of a triangle with the angle opposite to any 1 sid...

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 …