# Geometry Topics

Trapezoid The quadrilateral with two parallel sides is called trapezoid. The sides that are parallel are called bases and the others are called lateral edges. The line segment passing through the midpoints of the side edges is called the middle base. Features The trapezoid with equal side edges is called “isosceles trapezoid”. In an isosceles […]

[vc_row][vc_column][vc_column_text] Angles in A Line (Point, Line, Segment, Ray, Plane and Space Concepts) Dot; It is an undefined term. The trace left by the pointed tip of the pen on the paper gives an idea about the point. The point has no size. The points are named with capital letters. The set of all points […]

[vc_row][vc_column][vc_column_text] Circles The set of points (instead of geometric) that are of equal length from a fixed point in the plane is called a circle. [/vc_column_text][/vc_column][/vc_row]

[vc_row][vc_column][vc_column_text] Square-Rectangle Parallelogram with opposite sides equal and perpendicular angles is called rectangle. Since rectangle is a special parallelogram, it provides all the properties of parallelogram. Its diagonals are equal to each other. A rectangle with equal sides is called a square. Since it is a rectangle, it provides all the properties of the rectangle, […]

[vc_row][vc_column][vc_column_text] PARALLELOGRAM It is a quadrilateral with opposite sides parallel. In a parallelogram, the lengths of opposite sides are equal to each other. Equilateral quadrangle It is a quadrilateral with opposite sides parallel and all sides equal. A rhombus is a special parallelogram since its opposite sides are parallel. Therefore, it provides all the properties […]

[vc_row][vc_column][vc_column_text] Polygons The combination of line segments passing through successive ones of three or more points in the plane, of which any three are nonlinear, is called a polygon. These line segments do not intersect except their end points. It is a closed shape that consists of line segments with intersecting all end points. These […]

[vc_row][vc_column][vc_column_text] RECTANGLES Let’s reinforce the subject with solved tests after YKS Geometry quadrilaterals.. [/vc_column_text][/vc_column][/vc_row]

[vc_row][vc_column][vc_column_text] EDGE ANGLE FORMULAS The length of one side in a triangle is less than the sum of the lengths of the other two sides; is greater than the absolute value of their differences. In a triangle, the sides opposite equilateral angles are equal. A triangle has a large side against a major angle and […]

[vc_row][vc_column][vc_column_text] TRIANGLE PARITY VE SIMILARITY Similarity Axioms 1. A.A.A (Angle-Angle-Angle) Similarity: If the two reciprocal angles of the two triangles are given equal, these two triangles are similar since the third angles of the triangle will be equal. 2. K.A.K (Side-Angle-Edge) Similarity: If the two opposite sides of the two triangles are proportional and the […]

[vc_row][vc_column][vc_column_text] MEDIAN IN THE TRIANGLE The line segment that joins the midpoint of one side of the triangle to the opposite corner is called the median. Median properties In a triangle, three sides intersect at one point, which is the center of gravity of the triangle. The distance of the center of gravity of a […]