8th class. Geometry0+
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Adjacent and vertical angles.
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Signs of equality of triangles
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Isosceles triangle, its features and properties
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Tangent to a circle and its property
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Quadrilateral, its elements.
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Parallelogram, its properties and signs
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Rectangle and its properties
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Rhombus and its properties
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Square and its properties
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Trapeze
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Inscribed and central corners
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Inscribed and circumscribed quadrilaterals
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Thales' theorem
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The middle line of a triangle, its properties
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The middle line of a trapezoid, its properties
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Generalized theorem of Thales
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Similar triangles.
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The second and third signs of similarity of triangles
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Property of the median of a triangle
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Bisector property
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Sine, cosine, tangent of an acute angle of a right triangle
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Theorem of Pythagoras
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Perpendicular and inclined, their properties
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The ratio between the sides and angles of a right triangle.
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The ratio between the sides and angles of a right triangle.
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The value of sine, cosine, tangent of some angles
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Solving right triangles
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Solving problems of practical content
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Polygon and its elements
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A polygon inscribed in a circle and a polygon described around a circle
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The concept of the area of ??a polygon.
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Area of ??parallelogram, rhombus
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Area of ??the triangle
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The area of ??the trapezium
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Solving problems of practical content
2020Online School, Documentary, Education, Ukraine
Full HD295 minutes
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