Yes, Illustrator does have built-in shapes. You can find them in the Shape Library.

There are a few ways to add shapes in Illustrator. One way is to use the Rectangle, Ellipse, and Path tools. You can also use the Draw panel to create paths and shapes.

The shape tool is located in the Tools panel on the Illustrator toolbar. It is a small, square, white icon with a black arrow pointing out of it. When you click on the shape tool, a toolbar appears with several shapes available: Rectangle, Oval, Ellipse, and Path. To access the other tools available in the shape tool, such as the Pencil and Brush tools, click on the arrows next to those tools.

A live shape in Illustrator is a vector object that is still editable after it has been created. This means that you can move, resize, and reshape the object while it is still in the Illustrator file.

In Illustrator, shapes are composed of paths. A path is a series of connected points that can be edited together to create any shape you need. You can create paths by using the Pen or Touch pen tools, or by using the Direct Selection tool ().

To create a circle shape in Illustrator, you first need to create a basic shape with an Ellipse tool. Next, use the Direct Selection tool to select the inner circle’s anchor points (the four points around the circumference of the ellipse), and drag them inward until they form a perfect circle. Finally, use the Translate tool to move the outer anchor points to their corresponding positions outside of the circle.

In Illustrator, the shape tool can be used to create complex shapes by selecting different points and dragging them around. You can also use the shape tools to create simple shapes or to create copies of a selected shape.

In Illustrator, you can use complex shapes to create detailed designs. Shapes can be created by using the Rectangle, Ellipse, Path, and Bezier tools. You can also use the Shape Tools > Freeform tool to create freeform shapes.

Illustrator does not support the use of shape builder because it is a feature that was once exclusive to Inkscape. Shape builder allows users to create complex shapes with ease, and Illustrator does not have a built-in equivalent.

In Illustrator, you can create a live shape by selecting the Ellipse tool and then drawing a circle or a rectangle. You can also use the Pen tool to create a freeform shape. When you create a live shape, you can edit the shape while it is still selected. You can move the shape by using the Move tool, resize it by using the resize handles and change its color by using the Color Picker tool.