R = Rotate. 7, R, 180, ENTER = Rotate selected object 180 degrees from the top view.
Keeping this in consideration, how do I change the rotation in blender?
Just so, how do you rotate an object?
What is rotate tool?
The Rotate tool can rotate objects in the drawing. Double-clicking the tool when an object is selected opens the Rotate Object dialog box as described in Custom Rotation. The Rotate tool can rotate, or rotate and duplicate the selected objects about an axis, or align the objects relative to another object.
To rotate objects, activate Rotate mode by pressing RKEY. As in Grab mode, you can change the rotation by moving the mouse, confirm with LMB, or ENTER cancel with RMB or ESC. Rotation in 3D space occurs around an axis, and there are various ways to define this axis.
Answer: press Q to select the Free Transform tool. Click the Rotate/Skew Modifier button in the Options area of the Tools panel. Drag any of the corner handles on the bounding box to rotate the shape.