High school (grades 9–10) · TypeLab 2D
C-Channel Section (UPN)
C-Channel Section (UPN): a composite plane figure made of a rectangle 5.8 × 7.6 cm, minus a rectangle 4.4 × 4.2 cm. It is a classic high school (grades 9–10) geometry problem (“Structural Sections”). The net area is 25.6 cm² and the total perimeter is 35.2 cm.
Certified measurements (1:1 scale)
- Net area
- 25.6 cm²
- Total perimeter
- 35.2 cm
- Bounding box
- 5.8 × 7.6 cm
- Basic shapes
- 2
Step-by-step decomposition
- 1.Baserectangle 5.8 × 7.6 cm44.08 cm²
- 2.−rectangle 4.4 × 4.2 cm18.48 cm²
Area of each basic shape before the Boolean composition.
How to find the area
Area formula: A = B·H − (B−s)·(H−2s)
Split the figure into basic shapes, find each area, add the joined parts and subtract the cut-outs: A = 44.08 − 18.48 = 25.6 cm².
Editable in PowerPoint & Office
The .PPTX file contains native DrawingML shapes: outlines, dimensions and labels stay separate objects you can recolor and edit in PowerPoint, Keynote and Google Slides. The .SVG file is pure vector art at 1:1 scale on an A4 sheet, ready for print, LaTeX and textbook layout.
