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# Interior and exterior angles in a triangle at a vertex, together form a linear pair.
# Interior and exterior angles in a triangle at a vertex, together form a linear pair.
=== '''Activity No # 1 : Formation of a triangle''' ===
=== Activity No # 1 : Formation of a triangle ===
[[File:Triangle formation.png|thumb|Formation of a triangle]]
[[File:Triangle formation.png|thumb|Formation of a triangle]]
* '''Objectives'''
* '''Objectives'''
# What will happen if the three vertices are collinear?
# What will happen if the three vertices are collinear?
=== '''Activity No # 2 : Elements of a Triangle''' ===
=== Activity No # 2 : Elements of a Triangle ===
* '''Objectives'''
* '''Objectives'''
# To understand the elements of a triangle
# To understand the elements of a triangle
[[Category:Class 9]]
[[Category:Class 9]]
=== '''Activity No # 3 : Measures associated in a triangle''' ===
=== Activity No # 3 : Measures associated in a triangle ===
* '''Objective''':
* '''Objective''':
# To learn the different measurements in a triangle and the associated properties
# To learn the different measurements in a triangle and the associated properties
# Are they able to recognize types of triangles?
# Are they able to recognize types of triangles?
=== '''Activity No # 4 : Interior and Exterior angles in a triangle''' ===
=== Activity No # 4 : Interior and Exterior angles in a triangle ===
* '''Objectives'''
* '''Objectives'''
# Identify all angles when a triangle is formed
# Identify all angles when a triangle is formed
# Scalene triangles are triangles in which none of the sides are the same length.
# Scalene triangles are triangles in which none of the sides are the same length.
=== '''Activity No # 5 : Types of triangles based on sides''' ===
=== Activity No # 5 : Types of triangles based on sides ===
* '''Objectives'''
* '''Objectives'''
# Recognize the triangles based on the measures of the sides
# Recognize the triangles based on the measures of the sides
# Have children been able to conclude when a triangle is formed given the three sides.
# Have children been able to conclude when a triangle is formed given the three sides.
=== '''Activity No # 6 : Types of triangles based on angles''' ===
=== Activity No # 6 : Types of triangles based on angles ===
* '''Objectives'''
* '''Objectives'''
# Recognize the triangles based on the measures of the sides
# Recognize the triangles based on the measures of the sides
