New posts in triangles

How do I show that the pythagoras theorem holds for the specific case of an "isosceles right triangle"?

geometry triangles

Langley's Adventitious Angles

geometry trigonometry triangles

Is there any equation for triangle?

graphing-functions triangles

Are there prime lengths in triangle with all integer sides and heights?

geometry prime-numbers triangles

Japanese theorem, in its extended form

geometry circles triangles

The inequality $\frac{MA}{BC}+\frac{MB}{CA}+\frac{MC}{AB}\geq \sqrt{3}$

geometry inequality triangles geometric-inequalities

Determine angle $x$ using only elementary geometry

geometry triangles intuition angle

Equality of triangle inequality in complex numbers

complex-analysis inequality complex-numbers triangles absolute-value

Is the limit of this infinite step construction an equilateral triangle?

euclidean-geometry triangles

Maximum area of a square in a triangle

geometry triangles area maxima-minima quadrilateral

Proving Stewart's theorem without trig

geometry triangles

How many triangles can be formed by the vertices of a regular polygon of $n$ sides?

combinatorics permutations combinations triangles polygons

Stuck on this - In ABC right triangle AC= $2+\sqrt{3}$ and BC = $3+2\sqrt{3}$. circle touches point C and D, Find the Area of $AMD$

geometry triangles circles

What is the flaw in this proof that all triangles are isosceles?

geometry recreational-mathematics triangles fake-proofs

Triangle Formula for alternative Points

geometry triangles

In a right triangle, can $a+b=c?$

geometry euclidean-geometry triangles

How to prove the sum of angles is $\pi$ radians

trigonometry triangles

Is ABC an equilateral triangle

triangles

Calculate the area of an triangle that is inscribed into an ellipse such that the elliptical sectors are of equal size.

geometry triangles conic-sections

Find an angle of an isosceles triangle

geometry triangles