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Презентация на тему к уроку геометрии по теме Четырехугольники на английском языке

PolygonA POLYGONE is a many-sided shape. Sides and angles are the same. Quadrilateral has 4 sides and 4 angles.
QUADRILATERALSMikhailichenko Yelena , Tsoy Svetlana PolygonA POLYGONE is a many-sided shape. Sides and angles are the same. Types of quadrilateralsParallelogram has two pairs of parallel sides. Its parallel sides You must knowThe 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 Thanks for your attention!
Слайды презентации

Слайд 2 Polygon
A POLYGONE is a many-sided shape. Sides and

PolygonA POLYGONE is a many-sided shape. Sides and angles are the

angles are the same. Quadrilateral has 4 sides and

4 angles.

Слайд 3 Types of quadrilaterals
Parallelogram has two pairs of parallel

Types of quadrilateralsParallelogram has two pairs of parallel sides. Its 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


Слайд 4 You must know
The diagonals of a parallelogram are

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

divided in half by the point of intersection.


Слайд 5 The diagonals of a rectangle and a square

The diagonals of a rectangle and a square are equal

are equal


Слайд 6 Diagonals of a rhombus are perpendicular and are

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

the bisectors of its angles.


Слайд 7 A trapezoid has only one pair of parallel

A trapezoid has only one pair of parallel sides. There are

sides. There are only two types of trapezoid .
Trapezoid
Isosceles

trapezoid

Rectangle trapezoid


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