Determine if a point is in a triangle?
17459
Determining if an arbitrary point lies inside a triangle defined by three points?
130436
bisectors of an angle in a triangle intersect at a single point - proof verification
108557
Tikz triangle with point colours
67774
Number of isosceles triangle.
91325
Finding acute triangle probability
111561
Distance of a point to a subset.
50141
How do I check if CGContext contains point?
153103
How to tell whether a point is to the right or left side of a line
31026
How to check if a 2D point is in a polygon?
57992
choosing points interior to a square
96065
Question about sines of angles in an acute triangle
133567
Area of a triangle in terms of areas of certain subtriangles
130470
Find the angle ADE of the given triangle.
62518
How many rectangles or triangles.
140519
How to determine the point of intersection of two lines?
95107
How to get a perpendicular segment inside of a triangle
57184
Find the point in a triangle minimizing the sum of distances to the vertices