Difference between revisions of "Construction of a triangle with side, angle and difference of other two sides"
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− | + | Difference of two sides and an angle are parameters known, this construction of triangle follows SAS congruence rule. | |
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− | === Objectives === | + | ===Objectives=== |
− | + | To construct a triangle with side, angle and difference of other two sides | |
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===Estimated Time=== | ===Estimated Time=== | ||
+ | 30 minutes | ||
=== Prerequisites/Instructions, prior preparations, if any === | === Prerequisites/Instructions, prior preparations, if any === | ||
+ | Prior understanding of point, lines and angles, elements of triangle, properties of triangle | ||
===Materials/ Resources needed=== | ===Materials/ Resources needed=== | ||
− | + | * Digital : Computer, geogebra application, projector. | |
− | + | * Non digital : Worksheet and pencil | |
+ | * Geogebra files : “[https://ggbm.at/mskbthga Triangle Construction(1side-1angle-difference of other 2 sides)]” | ||
− | + | {{Geogebra|mskbthga}} | |
− | + | ===Process (How to do the activity)=== | |
− | + | * Use the slider to set the base and the given angle | |
− | + | * The difference of the other two sides is marked using the slider | |
+ | * Follow the steps for construction – step1, step2 | ||
+ | * Students can vary the sliders to observe the changes reflected in the triangle. | ||
+ | '''Evaluation at the end of the activity''' | ||
+ | * When does the triangle not form? | ||
− | + | [[Category:Triangles]] | |
+ | [[Category:Class 8]] | ||
+ | [[Category:Classroom activities]] |
Latest revision as of 10:42, 26 April 2019
Difference of two sides and an angle are parameters known, this construction of triangle follows SAS congruence rule.
Objectives
To construct a triangle with side, angle and difference of other two sides
Estimated Time
30 minutes
Prerequisites/Instructions, prior preparations, if any
Prior understanding of point, lines and angles, elements of triangle, properties of triangle
Materials/ Resources needed
- Digital : Computer, geogebra application, projector.
- Non digital : Worksheet and pencil
- Geogebra files : “Triangle Construction(1side-1angle-difference of other 2 sides)”
Download this geogebra file from this link.
Process (How to do the activity)
- Use the slider to set the base and the given angle
- The difference of the other two sides is marked using the slider
- Follow the steps for construction – step1, step2
- Students can vary the sliders to observe the changes reflected in the triangle.
Evaluation at the end of the activity
- When does the triangle not form?