Middle school · TypeLab 2D
Double V-Notched Plate
Double V-Notched Plate: a composite plane figure made of a rectangle 6.4 × 7 cm, minus a triangle with base 4.2 cm and height 1.8 cm, minus a triangle with base 4.2 cm and height 1.8 cm. It is a classic middle school geometry problem (“Composite Polygons”). The net area is 37.24 cm² and the total perimeter is 29.46 cm.
Certified measurements (1:1 scale)
- Net area
- 37.24 cm²
- Total perimeter
- 29.46 cm
- Bounding box
- 6.4 × 7 cm
- Basic shapes
- 3
Step-by-step decomposition
- 1.Baserectangle 6.4 × 7 cm44.8 cm²
- 2.−triangle with base 4.2 cm and height 1.8 cm3.78 cm²
- 3.−triangle with base 4.2 cm and height 1.8 cm3.78 cm²
Area of each basic shape before the Boolean composition.
How to find the area
Area formula: A = B·H − 2·(½·b_v·p)
Split the figure into basic shapes, find each area, add the joined parts and subtract the cut-outs: A = 44.8 − 3.78 − 3.78 = 37.24 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.
