Steiner inellipse
Steiner inellipse
Unique ellipse tangent to all 3 midpoints of a given triangle's sides.
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Readers' pathsAug 2026 – Oct 2026
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Steiner ellipse
Circumellipse of a triangle whose center is the triangle's centroid.
30%
Marden's theorem
On zeros of derivatives of cubic polynomials.
27%
Inellipse
Ellipse tangent to all sides of a triangle.
23%
Mandart inellipse
Inellipse tangent where the triangle's excircles touch its sides.
11%
Jakob Steiner
Swiss mathematician (1796–1863).
9.2%
Readers come from
Share of the 184 readers arriving from another article
Complex number
Number with a real and an imaginary part.
35%
Steiner ellipse
Circumellipse of a triangle whose center is the triangle's centroid.
33%
Marden's theorem
On zeros of derivatives of cubic polynomials.
14%
Cubic equation
Polynomial equation of degree 3.
6.5%
Mandart inellipse
Inellipse tangent where the triangle's excircles touch its sides.
6.5%