1. Create a blank canvas that is 600x600 pixels.

2. Select the line tool and set the color to black.

3. Create a line that bisects the canvas down the middle vertically.

4. Create a line that bisects the canvas across the middle horizontally.

5. Create a line that begins 100px from the bottom of the canvas and 100px from the right side. The line should run vertically up to 100px from the top of the canvas.

6. Create a line that begins 100px from the right side of the canvas and 100px from the top. The line should run horizonatlly across to 100px from the left side.

7. Create a line that begins 100px from the bottom of the canvas and 100px from the left side. The line should run vertically up to 100px from the top of the canvas.

8. Create a line that begins 100px from the bottom of the canvas and 100px from the left side side. The line should run horizontally across to 100px from the left side.

Original

Result