Finding isosceles triangles
67774
Number of isosceles triangle.
70697
Direct formula for area of a triangle formed by three lines, given their equations in the cartesian plane.
5642
Geometry with Trigonometry
145662
Prove that two lines are perpendicular in isosceles triangle geometrically
60249
Find hypotenuse given acute angle bisectors
30044
Inequality with triangle sides
73907
Condition for 3 complex numbers to represent an equilateral triangle
150284
Problem about angle in isosceles triangle
117349
counting triangles in a graph or its complement
101476
If $A$, $B$ and $C$ are the angles of a triangle then find the value of $\Delta$
81975
Sequence of triangles with exponentiated sides
125171
Help with this trigonometry problem?
18517
Maximum area of isosceles triangle with perimeter 6 cm
34029
Find intersection of pairs of straight lines
17801
Isosceles triangle has the least perimeter among triangles on the same base with same area?
103172
showing certain vertices form an equilateral triangle
135120
Oppenheim's Inequality for triangles, American Mathematical Monthly problems