Презентация к уроку геометрии по теме Четырехугольники на английском языке

QUADRILATERALS Mikhailichenko Yelena , Tsoy Svetlana

Polygon A POLYGONE is a many-sided shape. Sides and angles are the same. Quadrilateral has 4 sides and 4 angles.

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Types of quadrilaterals Parallelogram has two pairs of parallel sides. Its parallel sides are equal. Its opposite angles are equal too. Rhombus is a parallelogram too. Its sides are all equal. Square has all equal sides and all equal angles too. Rectangle is a parallelogram which has all equal angles. Trapezoid has only two parallel sides. Parallelogram Square Rectangle Rhombus Trapezoid

You must know The diagonals of a parallelogram are divided in half by the point of intersection.

The diagonals of a rectangle and a square are equal

Diagonals of a rhombus are perpendicular and are the bisectors of its angles.

A trapezoid has only one pair of parallel sides. There are only two types of trapezoid . Trapezoid Isosceles trapezoid Rectangle trapezoid

Thanks for your attention!