An equilateral triangle in Photoshop is drawn using vector objects. You can draw a filled triangle, or a triangle with a frame. Select drawing polygons (Polygon tool).
Drawing polygons (Polygon tool)
Select the shapes (horizontal key U), then the Polygon tool (Polygon Tool), see the screenshot below.
Set the "Fill Pixels" property.
Select the fill color of the triangle (the first color in the toolbar), and draw a triangle with the mouse. 
Triangle with frame
The triangle should be drawn on a new empty layer, without any fill. You can create a new layer by simultaneously pressing the keys Alt + Ctrl + Shift + N.
Set the value to "Paths" (paths in Russian). 
Draw a triangle with the mouse. 
Convert the vector triangle into a selection (Select) by pressing Ctrl + Enter. 
Paint the selection (in this case, white).
Alt + ← BackSpace - first selected color.
Ctrl + ← BackSpace - second selected color.
An equilateral triangle in Photoshop is drawn using vector objects. You can draw a filled triangle, or a triangle with a frame. Select drawing polygons (Polygon tool).
Drawing polygons (Polygon tool)
Select the shapes (horizontal key U), then the Polygon tool (Polygon Tool), see the screenshot below.
Set the "Fill Pixels" property.
Select the fill color of the triangle (the first color in the toolbar), and draw a triangle with the mouse. 
Triangle with frame
The triangle should be drawn on a new empty layer, without any fill. You can create a new layer by simultaneously pressing the keys Alt + Ctrl + Shift + N.
Set the value to "Paths" (paths in Russian). 
Draw a triangle with the mouse. 
Convert the vector triangle into a selection (Select) by pressing Ctrl + Enter.
Paint the selection (in this case, white).
Alt + ← BackSpace - first selected color.
Ctrl + ← BackSpace - second selected color.
Program Adobe Photoshop widely used for working with images, providing a truly wide range of possibilities. Most users use Photoshop for photo retouching, but, in addition, the program allows you to create: drawings, paintings, graphics - of varying degrees of complexity. Photoshop has several tools designed for creating drawings. First of all, you need to learn how to draw simple elements like triangles, lines, ellipses and other things, since they are used very often when creating various kinds drawings. In this article we will take a closer look at how to draw simple shapes in Photoshop. Let's figure it out. Go!
Let's understand the basics of computer graphics
With Adobe Photoshop open, look at the Tools panel. To go to the shapes, click on the rectangle icon. In the pop-up window you will see the following tools:
- "Rectangle";
- "Rectangle with rounded corners";
- "Ellipse";
- "Polygon";
- "Line";
- "An arbitrary figure."
The editor offers several classic and free forms
There are three drawing modes in total:
- Created new figure, for which you can make a fill layer or a vector mask.
- An outline of the figure is created and painted over with some color.
- Pixel mode. In this case, the images are raster and not vector.
For each selected figure, geometric parameters are set, in other words, proportions. To draw a rectangle, select the appropriate tool, set the necessary outline settings and fill color. Now just place the cursor at the point on the sheet from which you want to start drawing. Hold down the left mouse button and drag the rectangle as needed.
There is nothing easier than drawing a line. The tool of the same name is used for this.
For a circle, use the Shift key or the additional settings menu
Let's move on to how to draw a circle in Photoshop. Here everything happens in a similar way. Select the Ellipse tool and decide on the color and thickness of the outline. If you want to get a circle rather than an ellipse, hold down the “Shift” key on your keyboard or set “circle” in the geometric parameters section.
We draw a beautiful composition using standard tools
Now let's figure out how to draw a triangle in Photoshop. In this case, everything is not so obvious, but at the same time it is not at all more complicated. All you need to do is select “Polygons” and in the small “Sides” window, set the number of angles. Accordingly, to get a triangle, enter the number “3”. Then everything is done exactly the same as in previous cases. Using the Polygon tool, you can create a shape with any number of angles. If you need to get right triangle, draw a square, and then cut off half diagonally.
Arrows at the beginning or end can be set in the tool properties
Let's look at how to draw an arrow in Photoshop. There are two ways to do this. The first is that you need to select the “Line” tool, then in the parameters window mark which side of the line the arrow will be on (at the beginning or at the end), then you need to set the thickness of the arrow in pixels. Place the cursor at the desired point and start stretching the line with the mouse. The second method is to select “Custom Shape”. On the top panel there is a table with templates, among them there is an arrow.
Templates included in the standard application package
Drawing a cloud with a pen
A simple drawing lesson. How to draw anything with the Pen Tool. The tool is universal, it can do a lot, but non-professionals rarely use it. Why? They think it is difficult to learn how to use the Pen tool in Photoshop. Nothing complicated. Try this tutorial as an example.
How to draw a simple figure with a pen - a cloud or a small cloud? Or any other figure consisting of several curved segments. The easiest way is to create a simple and primitive rectilinear contour, and then “bend” its segments as needed.
Take the Pen Tool, click the Paths button on the options bar to draw a path without filling, and draw a shape like this by simply clicking in the right places with the pen:
The Path Selection Tool and Direct Selection Tool arrows, located on the toolbar immediately below the pen, allow you to move the path or its individual nodes. Use these arrows for editing if the outline you created is not entirely successful.
It doesn't look much like a cloud. Select the Add Anchop Point Tool reference point) from the Pen tool group and place an additional anchor point in the middle of some straight line.
In order for the straight line to bend, you need to pull outward by the middle, that is, by this additional point that we installed. Two guides extend from this point. If they are very short, the arc will bend steeply. To change the shape of the arc, grab the tip of the guide and stretch it. For the arc to be symmetrical, the guides must be the same length and located at the same angle to it.
Convert all straight segments into arcs as in the figure.
The result is a contour resembling a cloud. But a figure drawn in this way is not an image, but only a pattern that can be used to create an image. The outline is invisible in the picture. The created outline of the cloud can be filled with color or texture, or outlined with a pencil or brush.
Select white from the Photoshop toolbar.
Right-click anywhere on or near the path. A context menu for working with the contour will open.
From this menu, select Fill Path. In the dialog box that opens, you can select the foreground or background fill color, Feather Radius, and layer overlay mode.
Here is the result - a nice white cloud is drawn:
What if the cloud should not be white, and you only need to draw the outline of the cloud? Undo the last action - filling the outline: History palette (History), one step back.
Select and customize the Pencil tool. In the Options Bar, set its thickness to 2 or 4 pixels.
Right-click to bring up the context menu for working with the path. Select Stroke Path from the menu.
In the window that opens, select the Pencil tool.
Click OK and get the result - the outline of the cloud outlined in pencil.
You can also use other tools for outlining, such as a brush. Each tool must be pre-configured.
Undo the last action - pencil stroke: History palette (History), one step back. On the toolbar, select the Brush tool and give it the following parameters:
Right-click to bring up the context menu for working with the path. In the menu, select Stroke Path (Stroke) and in the dialog box, instead of Pencil (Pencil), set Brush (Brush)
You will get this result:
If during the learning process you created a small masterpiece and want to save it for future use, then again right-click the context menu for working with the contour and select Define Custom Shape.
In the window that opens, enter a name for the shape and OK.
In the future, you will find your cloud in the section of ready-made vector shapes free form and you can use it whenever you need it.
