How Do You Change a Triangle to a Circle in SketchUp?

Changing a triangle to a circle in SketchUp may seem like a challenging task, but with the right techniques, it can be easily achieved. In this tutorial, we will explore different methods to transform a triangle into a circle using SketchUp’s powerful tools and features.

Method 1: Drawing a Circle Using the Circle Tool

Step 1: Open SketchUp and create a new project. Make sure you are in the ‘Top’ view by selecting ‘Camera’ from the toolbar and then choosing ‘Standard Views’ followed by ‘Top’.

Step 2: Select the ‘Circle’ tool from the toolbar on the left side of the screen. Alternatively, you can press ‘C’ on your keyboard to activate the Circle tool.

Step 3: Click on any point in your workspace as the center of your circle. Use inference points or enter specific coordinates if needed.

Step 4: Move your cursor away from the center point to set the radius of your circle. You can either type in a specific radius or use inference points to adjust it visually.

Step 5: Click anywhere in your workspace to complete drawing your circle. It will appear as an outline initially.


  • You can hold down the Shift key while drawing to constrain your circle’s proportions and make it perfectly circular.
  • If you need an exact circle with a specific diameter, enter that value directly after activating the Circle tool, followed by pressing Enter or Return on your keyboard.

Method 2: Converting a Triangle into a Circle

Step 1: Start by creating a triangle using the ‘Line’ tool. Activate the Line tool from the toolbar or press ‘L’ on your keyboard.

Step 2: Click anywhere in your workspace to set the starting point of your triangle.

Step 3: Move your cursor to the desired location and click again to create a second point. Repeat this step for the third point, forming a triangle.

Step 4: Select the ‘Arc’ tool from the toolbar or press ‘A’ on your keyboard.

Step 5: Click on one of the triangle’s edges to set it as a reference for your arc.

Step 6: Move your cursor away from the reference edge and click again to create an arc. Adjust its size and position until it resembles a quarter of a circle.


  • You can hold down the Ctrl key (Windows) or Option key (Mac) while creating an arc to ensure it snaps to specific angles, such as 45 degrees for perfect quarters.
  • To convert your quarter-circle into a complete circle, select it using the ‘Select’ tool (shortcut: Spacebar) and then right-click on it. Choose ‘Make Component’ from the context menu and enter any desired settings like name and description. Your circle is now ready!

Tips and Tricks

  • If you need to change an existing triangle into a circle, select all its edges using either Shift+Click or dragging across them with the Select tool activated. Then, follow the steps mentioned in Method 2 to convert it into a circle.
  • Remember to save your progress regularly to avoid losing any changes or modifications.

Congratulations! You have now learned how to change a triangle into a circle in SketchUp using different methods. Experiment with these techniques, and soon you’ll be able to create various shapes effortlessly!