Primary school · TypeLab 2D
Bell Tower
Bell Tower: a composite plane figure made of a rectangle 3.4 × 7.2 cm, joined with a triangle with base 4.4 cm and height 3.8 cm. It is a classic primary school geometry problem (“Additive Figures”). The net area is 32.84 cm² and the total perimeter is 27.58 cm.
Certified measurements (1:1 scale)
- Net area
- 32.84 cm²
- Total perimeter
- 27.58 cm
- Bounding box
- 4.4 × 11 cm
- Basic shapes
- 2
Step-by-step decomposition
- 1.Baserectangle 3.4 × 7.2 cm24.48 cm²
- 2.+triangle with base 4.4 cm and height 3.8 cm8.36 cm²
Area of each basic shape before the Boolean composition.
How to find the area
Area formula: A = b·h₁ + ½·b·h₂
Split the figure into basic shapes, find each area, add the joined parts and subtract the cut-outs: A = 24.48 + 8.36 = 32.84 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.
