Multiply the length of the rectangle by the width. For example: 34cm x 20cm = 680cm2
All rectangles are parallelograms but a rhombus for example, is a parallelogram but not a rectangle.
your textbook
A rectangle, for example.
A rectangle or a rhombus.
Any rectangle will do as an example.
A rectangle is always a quadrilateral and a parallelogram.
Rectangular prism
Multiply the length of the rectangle by the width. For example: 34cm x 20cm = 680cm2
All rectangles are parallelograms but a rhombus for example, is a parallelogram but not a rectangle.
A example would be a rectangle pool, and a book/dictionary. Hope it helped! :)
rectangle and concave
your textbook
The perimeter of any 2D shape is the sum of all of the individual sides. For example: the perimeter of a rectangle is = length of rectangle (top) + length of rectangle (bottom) + height of rectangle (Left) + height of rectangle (Right)
In order to find the area of a rectangle, multiply the length by the width of the rectangle. For example: If the length of a rectangle is 5cm and the width of a rectangle is 2cm, then the area of the rectangle would be 5cm X 2cm = 10cm².
A quadrilateral polygon
A rectangle, for example.