Geometric construction

• Wiskunde
• Middelbare school
• vwo
• Leerjaar 2

Geometric construction!

Schedule: 

• Learning goals
• Construction demonstration
• Construct yourself (videos or steps from the book)

Learning goals 

At the end of this lesson I can:

•  Construct a bisector with compass and ruler
• Construct a perpendicular bisector with compass and ruler
• Construct a right angle

Why learn geometric construction? 

Why learn geometric construction? 

The skills you need to construct, will help you understand the construction and see links. 

This is useful for: 
- Architecture

- Measuring orbits and planetary motions  

- Interior design 

(It also helps when you forgot your protractor) 

Constructing an angle bisector

Bisector: A line that divides something exactly in half. 

Angle bisector: A line that divides an angle exactly in half 

If [OC] is the bisector of ∠ AOB, 

∠ AOC = ∠ BOC

Constructing a perpendicular bisector

Bisector: A line or segment that divides something exactly in half. 

Perpendicular bisector: A line or segment the is perpendicular to a segment and divides this exactly in half. 

Constructing a right angle

Right angle: a right angle is an angle that measures 90°

Let's work! 

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