Слайд 2
Polygon A POLYGONE is a many-sided shape. Sides and
angles are the same. Quadrilateral has 4 sides and
4 angles.
Слайд 3
Types of quadrilaterals Parallelogram has two pairs of parallel
sides. Its parallel sides are equal. Its opposite angles
are equal too. Rhombus is 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