Geometry dedicated website – follow link below
http://www.mathsisfun.com/geometry/index.html
Basic Geometric Constructions – follow link below
http://www.graphicalcommunication.com/indexbasicgeometric.php
Inscribed, Circumscribed, and Escribed circles – follow link below
http://www.graphicalcommunication.com/lessonnotes/inscesccirc.php
The Polygon Song
The Triangle Song
Construction of Triangles
given:
- 3 sides
- 2 sides and their included angle
- Base, one base angle and the length of the side opposite the base angle
- Base and two base angles
- The base of an equilateral triangle
- The altitude of an equilateral triangle
- Base and altitude of an isosceles triangle
- Length of one side/angle and hypotenuse of a right angle triangle
- 2 base angles and the altitude
- Altitude and apex angle of an isosceles triangle
- Perimeter and the ratio of the three sides
- Perimeter and altitude of an isosceles triangle
- Perimeter and the 2 base angles
- Perimeter, base and base angle
- Base angle, apex angle and altitude
The following are worked examples to illustrate each of the above sets of data.
Triangles 1-6
Triangles 7-12
Triangles 13-15