Описание презентации по отдельным слайдам:
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.
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!
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