The amount of surface enclosed by the boundary of a plane closed figure is called its area and is measured in squared units.

A diagonal of a parallelogram divides it into two congruent triangles i.e. two triangles of equal area.

Parallelograms between the same base and between the same parallels are equal in area.

A parallelogram and a rectangle on the same base and between the same parallels are equal in area.

## Area Theorems PDF

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