5.4 Constructions

Objectives:

learn to construct angles of 60°, 45° and 30°

learn to use a circle to draw a regular polygon.

Create his own inscribed polygon by construction.

Video Lectures:

1) Constructing a 45 degree angle

 Different method "45°":


2) Constructing a 60 degree angle

Different method "60°"


3) Constructing a 90 degree angle

Different method "90°"

4) Constructing a square inscribed in a circle:

CW: LB p. 114 to p. 117

Exercise 5.4 in LB - p. 116

HW: Exercise 5.4 in p. 72, 73 in WB