Concept 1 of 10Foundation
Watch on YouTubeVideoYour geometry toolkit
- Ruler — straight lines + measuring length (cm, mm).
- Compass — draws circles and arcs; transfers equal distances.
- Protractor — measures and draws angles in degrees.
- Set squares — fixed angles (30°-60°-90° and 45°-45°-90°); also draw parallels.
- Divider — precise distance transfer (two pins).
- Sharp pencil — thin lines = accurate constructions.
Example
To draw a circle of exactly 4 cm radius: fix compass opening to 4 cm against a ruler, place pin on paper, sweep full circle.
💡 Tip:Always keep your compass tip sharp and locked — tiny slips ruin accuracy.
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5 questions to check what you just read.
0 / 5
- Q1.Tool for drawing circles:
- Q2.Tool for measuring angles:
- Q3.Which tool draws straight lines and measures length?
- Q4.Divider is used for:
- Q5.Set squares usually come with angles: