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Constructing geometric shapes to precision using a scale and a compass helps in understanding of properties of the shape. Constructing geometric shapes with minimum number of parameters enhances thinking skills.

Constructing geometric shapes to precision using a scale and a compass helps in understanding of properties of the shape. Constructing geometric shapes with minimum number of parameters enhances thinking skills.

The following constructions are based on three essential parameters that are required for construction.

The following constructions are based on three essential parameters that are required for construction following the SSS, SAS and ASA theorems

===== Activities =====

===== Activities =====

====== [[Construction of a triangle with 3 sides|Construction of a triangle with three sides:]] ======

====== [[Construction of a triangle with 3 sides|Construction of a triangle with three sides:]] Construction of a triangle based on the SSS congruence rule ======

====== [[Construction of a triangle with two sides and included angle|Construction of a triangle with two sides and an angle]]: ======

====== [[Construction of a triangle with two sides and included angle|Construction of a triangle with two sides and an angle]]: Construction of a triangle based on SAS congruence rule ======

====== [[Construction of a triangle with two angles and included side]]: ======

====== [[Construction of a triangle with two angles and included side]]: Construction of a triangle based on ASA congruence rule ======

====== [[Construction of a right triangle with a side and hypotenuse|Construction of a right angled triangle]]: ======

====== [[Construction of a right triangle with a side and hypotenuse|Construction of a right angled triangle]]: Construction of a triangle based on RH congruence rule ======

====== [[Construction of a triangle with perimeter and base angles]]: ======

====== [[Construction of a triangle with perimeter and base angles]]: Construction on a triangle with give parameters using SAS congruence rule  ======

====== [[Construction of a triangle with side, angle and sum of other two sides|Construction of a triangle with a side, an angle and sum of two sides]]: ======

====== [[Construction of a triangle with side, angle and sum of other two sides|Construction of a triangle with a side, an angle and sum of two sides]]: Construction on a triangle with give parameters using SAS congruence rule  ======

====== [[Construction of a triangle with side, angle and difference of other two sides|Construction of a triangle with a side, an angle and difference to two sides:]] ======

====== [[Construction of a triangle with side, angle and difference of other two sides|Construction of a triangle with a side, an angle and difference to two sides:]] Construction on a triangle with give parameters using SAS congruence rule  ======

==== Concept 5: Concurrency in triangles ====

==== Concept 5: Concurrency in triangles ====