883
edits
Changes
Jump to navigation
Jump to search
Line 23:
Line 23: + + +
Sum of the interior angles of a quadrilateral (view source)
Revision as of 06:09, 16 April 2019
, 06:09, 16 April 2019→Process (How to do the activity)
* Make different quadrilaterals. Divide it into two triangles, measure the angles of the two triangles, check their sum.
* Make different quadrilaterals. Divide it into two triangles, measure the angles of the two triangles, check their sum.
* Tabulate the angles of the two triangles {| class="wikitable" |Observation | colspan="4" |Triangle1 | colspan="4" |Triangle2 |Sum of angles of two triangle Triangle1 + Triangle2 |- | |Angle 1 |Angle 2 | Angle 3 |Sum of angles |Angle 1 |Angle 2 | Angle 3 |Sum of angles | |- |Q1 | | | | | | | | | |- |Q2 | | | | | | | | | |- |Q3 | | | | | | | | | |}
* Tabulate the angles of the two triangles {| class="wikitable" |Observation | colspan="4" |Triangle1 | colspan="4" |Triangle2 |Sum of angles of two triangle Triangle1 + Triangle2 |- | |Angle 1 |Angle 2 | Angle 3 |Sum of angles |Angle 1 |Angle 2 | Angle 3 |Sum of angles | |- |Q1 | | | | | | | | | |- |Q2 | | | | | | | | | |- |Q3 | | | | | | | | | |}
'''Evaluation at the end of the activity'''
* Is the sum of any quadrilateral 360<sup>o</sup>.