SketchUp Circle & Polygon Tutorial | Sides, Segments, Radius, Area & Colors Fully Explained
If you've ever drawn a circle in SketchUp and wondered why it looks faceted, or struggled to understand the difference between an inscribed and circumscribed polygon, this tutorial clears it up completely. Circles and polygons are two of the most fundamental drawing tools in SketchUp — and yet most beginners use them without ever touching the powerful settings hidden behind them.
In this episode of the BIM.DESTINATION SketchUp series, we break down everything you need to know about drawing, controlling, and customizing circles and polygons inside SketchUp. From adjusting the number of sides and segments, to setting an exact radius, calculating area and circumference, and applying clean colors and materials — this video covers the complete workflow used by professionals in architecture, BIM, VDC, and 3D modeling.
What You'll Learn in This Tutorial:
How to draw a perfect circle in SketchUp using the Circle tool
How to adjust circle segments (sides) for smooth or faceted geometry
How to set an exact radius and resize circles precisely
How to calculate area and circumference directly inside SketchUp
How to apply colors and materials to circles cleanly
How to draw polygons and control the number of sides
The real difference between inscribed and circumscribed polygons
How to adjust polygon radius, area, and circumference
Best practices for clean geometry in BIM, VDC, and 3D design
00:00 - Introduction
01:45 - How to Draw a Circle & its Associated Settings
08:35 - How to Draw a Polygon & its Associated Settings
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