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Sum of the interior angles of a quadrilateral (view source)
Revision as of 08:45, 16 April 2019
, 08:45, 16 April 2019no edit summary
=== Objectives ===
=== Objectives ===
To establish that sum of interior angles of any quadrilateral is 360°
To establish that sum of interior angles of any quadrilateral is 360°
===Estimated Time===
===Estimated Time===
40 minutes
40 minutes
* Geogebra files : ‘[https://ggbm.at/dseaa3pq Sum of the interior angles of a quadrilateral.ggb]’
* Geogebra files : ‘[https://ggbm.at/dseaa3pq Sum of the interior angles of a quadrilateral.ggb]’
==={{Geogebra|dseaa3pq}}Process (How to do the activity)===
==={{Geogebra|dseaa3pq}}===
===Process (How to do the activity)===
* In the geogebra sketch for the quadrilateral measure the sides and angles at the vertices
* In the geogebra sketch for the quadrilateral measure the sides and angles at the vertices
* Calculate the sum of these angles of the quadrilateral? Note your observations
* Calculate the sum of these angles of the quadrilateral? Note your observations
'''Evaluation at the end of the activity'''
'''Evaluation at the end of the activity'''
* Is the sum of any quadrilateral 360<sup>o</sup>.
* Is the sum of all angles in any quadrilateral 360<sup>o</sup>.