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From Karnataka Open Educational Resources
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, 06:09, 16 April 2019
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| * 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>. |