Primary school · TypeLab 2D
Rectangular Frame
Rectangular Frame: a composite plane figure made of a rectangle 8 × 5.8 cm, minus a rectangle 5 × 2.8 cm. It is a classic primary school geometry problem (“Frames & Cutouts”). The net area is 32.4 cm² and the total perimeter is 43.2 cm, including 15.6 cm along the inner hole.
Certified measurements (1:1 scale)
- Net area
- 32.4 cm²
- Total perimeter
- 43.2 cm
- Outer boundary
- 27.6 cm
- Hole boundaries
- 15.6 cm
- Bounding box
- 8 × 5.8 cm
- Basic shapes
- 2
Step-by-step decomposition
- 1.Baserectangle 8 × 5.8 cm46.4 cm²
- 2.−rectangle 5 × 2.8 cm14 cm²
Area of each basic shape before the Boolean composition.
How to find the area
Area formula: A = B·H − b·h
Split the figure into basic shapes, find each area, add the joined parts and subtract the cut-outs: A = 46.4 − 14 = 32.4 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.
