Презентация на тему: Ромб

1.What is a quadrilateral?

2.What is a parallelogram?

3.Formula perimeter of a parallelogram?

4.Which angles are equal in parallelogram?

5.What is the sum of the angles in quadrilateral?

6.What is a rectangle?

8. Formula area of a rectangle?

7.Formula perimeter of a rectangle ?

Rhombus D. A rhombus is a parallelogram that has four congruent sides. Property. The diagonals of a rhombus are perpendicular. AC⟘BD Property. In a rhombus ABCD, the diagonals AC and BD bisect each other since a rhombus is a parallelogram. AO=OC=BO=OD Property. Each diagonal in a rhombus bisects two angles of the rhombus. For example: the diagonal AC is the bisector of angles A and C, the diagonal BD is the bisector of angles B and D

Perimeter of a rhombus P=DC+CB+AB+AD=4a Area of a rhombus

The link between rhombus and life