The pentagon

March 27th, 2017

We suppose that (ABC)=k^2 is the maximum area triangle inscribed in the convex plane pentagon ABCDE.

Find the maximum area of the pentagon.

Generalization.

fast saling ships

October 4th, 2016

ship-copy

Problem of Geometry

October 4th, 2016

The plane intersections of an ellipsoid

The shop-windows with boats

September 29th, 2016

shop-window

The girl near the white tower

September 29th, 2016

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The autumn leaves

September 29th, 2016

autom

no title

September 27th, 2016

no-title

The red boat

September 13th, 2016

the-boat

The Market

September 13th, 2016

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The inequality (condition) of Hadwiger.

September 13th, 2016

The Hadwiger’s condition determines the possibility to transporter a convex figure F1 in the interior of a convex figure  F0. A new proof.