Changes

# Repeat for different triangles. What do you infer?

# Repeat for different triangles. What do you infer?

===Activity No # External angle property of a triangle===

===Activity No # 3. External angle property of a triangle===

{| style="height:10px; float:right; align:center;"

{| style="height:10px; float:right; align:center;"

|<div style="width:150px;border:none; border-radius:10px;box-shadow: 5px 5px 5px #888888; background:#f5f5f5; vertical-align:top; text-align:center; padding:5px;">

|<div style="width:150px;border:none; border-radius:10px;box-shadow: 5px 5px 5px #888888; background:#f5f5f5; vertical-align:top; text-align:center; padding:5px;">

* Multimedia resources: Laptop

* Multimedia resources: Laptop

* Website interactives/ links/ Geogebra Applets:

* Website interactives/ links/ Geogebra Applets:

* Process (How to do the activity):

* Process (How to do the activity):

# The teacher can move the 'explain slider' to show how the sum of opposite interior angles equals to external angle.

# The teacher can move the 'explain slider' to show how the sum of opposite interior angles equals to external angle.