editions:UOM39015067252117

IF a straight line be divided into any two parts, the squares of the whole line, and of one of the parts, are equal to twice the rectangle contained by the whole and that part, together with the square of the other part.

The synoptical Euclid; being the first four books of Euclid's Elements of ... - Side 53
av Euclides - 1853
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The Elements of Plane Geometry

Euclid - 1845 - 336 sider

...angle A is four-thirds of a right angle ; prove that BC2 = CA2 + AB2 + rect. CA . AB. 168. PROP. 4. If a straight line be divided into any two parts, the squares on the whole line and on one of the parts are equal to twice the rectangle contained by the whole line...

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