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开始学习
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przecinające się linie DEF 开始学习
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two lines which lie in the same plane and which intersect, are called intersecting lines.
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开始学习
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two lines which lie in the same plane and which do not intersect are called parallel lines
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space is the set of all points. it is the universal set of points.
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two sets are said to be equal if they contain the same elements.
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the set of points which contains points A and B and all points of the line between these two points is called a LINE SEGMENT
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liczby naturalne dodatnie 1,2,3... 开始学习
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a regular hexagon has all sides and all angles equal.
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a regular pentagon has all sides and all angles equal.
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okrąg opisany na wielokącie 开始学习
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a regular hexagon and a circumscribing circle. the circle passes through all the vertices of the hexagon.
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a regular hexagon and an inscribing circle. the circle touches all sides of the hexagon
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开始学习
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开始学习
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开始学习
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a quadrilateral is a polygon which has four sides.
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a rectangle is a quadrilateral which has four right angles
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a square is a rectangle which has two adjacent sides of equal length.
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开始学习
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开始学习
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开始学习
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开始学习
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开始学习
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开始学习
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Orthocenter in a triangle
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dwusieczna kąta nazywamy półprodta o poczatku wierzcholka kąta dzielac kat na 2 开始学习
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angle bisector/ the bisector of an angle is called the half-length from the beginning of the vertex of the angle dividing the angle by 2
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środkowa trójkąta to odcinek łączący wierzchołek trójkąta ze środkiem przeciwleg 开始学习
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median///the middle of the triangle is the line segment connecting the vertex of the triangle with the opposite center
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środek ciężkości trójkąta 开始学习
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przecięcie dwusiecznych w trójkącie 开始学习
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incenter///intersection of bisectors in a triangle
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开始学习
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开始学习
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开始学习
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开始学习
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开始学习
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开始学习
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开始学习
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开始学习
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开始学习
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