How do you draw a rectangle ona grid witha perimeter of 18cm?
If we assume the rectangle has sides x and y, then the perimeter P is given by:
P = 2x + 2y = 18
We can rearrange this equation to obtain y in terms of x:
y = 9 - x
Now we need to draw this rectangle on a grid. Let's assume that one square on the grid represents 1 cm. We can start by drawing the x-axis and y-axis, and labeling the origin as (0,0).
Next, we can plot the point (x,0) on the x-axis, and the point (0,y) on the y-axis. These points represent two vertices of the rectangle.
We can then draw two horizontal lines and two vertical lines to connect these vertices. The rectangle will have the following dimensions:
Length (x-axis): x cm
Width (y-axis): (9-x) cm
Here's an example of what the rectangle might look like on the grid:
```
|
_|_
| |
| | (x,0)
|___|
|
(0,y) _|_
|
```
Note that there are many possible rectangles with a perimeter of 18 cm, depending on the values of x and y. This is just one example.