Consider the following figure.
A two-dimensional L-shaped figure is displayed. The topmost horizontal line is labeled 4m. On the right portion, the upper vertical side is labeled $x$x. The bottom horizontal line is labeled 12m. The leftmost vertical line is labeled 9m. The horizontal side y is between the ends of side $x$x and the bottom vertical side, on the rightmost, labeled 2m.
Find the length $x$x.
Find the length $y$y.
Calculate the perimeter of the figure.
Find the perimeter of the shape.
Introduction and general understanding of perimeter using many shapes. Shapes of different kinds with the same perimeter. Concept of area, Area of a rectangle and a square Counter examples to different misconceptions related to perimeter and area.