Here is a PDF version of the lesson.
Here is a PDF version of the workbook containing lots of practice.
We are often required to calculate the area and perimeter of objects or spaces in 2 dimensions (flat surface like a piece of paper).
In real life, this skill is helpful when designing living spaces or calculating the amount of fencing required to enclose a certain piece of land, etc.
Perimeter is the length and width around the object – the sum of all outer sides.
Area – the 2 dimensional space surrounded by the sides of the shape.
The two shapes we are looking at in this lesson are rectangle and square.
A square is also a rectangle, but a regular rectangle. “Regular” means all sides and angles are equal.
We develop formulas for both area and perimeter and analyze different situations.
Perimeter and area short animation
Grade 7 Rectangle Area and Perimeter Quiz