Difference between revisions of "Construction of a triangle with two sides and included angle"
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| − | === | + | === Objectives=== |
| − | + | * To construct a triangle given two sides and an angles | |
| − | + | * To understand the given angle should be included angle when two sides are given | |
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===Estimated Time=== | ===Estimated Time=== | ||
| + | 20 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/afe6xd8r Triangle construction (2sides-1angle)]” | ||
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===Process (How to do the activity)=== | ===Process (How to do the activity)=== | ||
| − | How | + | * For given angles and sides, which parameter will you start the construction with. |
| − | + | * If the given angle is drawn first what are the next steps of construction. | |
| − | + | * How many triangles are possible if the triangle is drawn such that the given angle is not included angle ( - if the second side is not marked along the arm of the angle but from point B) | |
| − | + | * If you start the construction with a given side which of the other two parameters should be taken next to complete the required triangle. | |
| − | What | + | '''Evaluation at the end of the activity''' |
| − | + | * How many triangles are possible for given 2 sides and an angle? | |
| − | + | * What is the additional condition that is required to be specified if 2 sides and 1 angle is given for constructing a triangle? | |
| − | + | <nowiki>**</nowiki>[http://www.robocompass.com/share?id=tofoqmqfhg12 Actual construction (using robocompass)] | |
Revision as of 10:56, 15 April 2019
Objectives
- To construct a triangle given two sides and an angles
- To understand the given angle should be included angle when two sides are given
Estimated Time
20 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 (2sides-1angle)”
Process (How to do the activity)
- For given angles and sides, which parameter will you start the construction with.
- If the given angle is drawn first what are the next steps of construction.
- How many triangles are possible if the triangle is drawn such that the given angle is not included angle ( - if the second side is not marked along the arm of the angle but from point B)
- If you start the construction with a given side which of the other two parameters should be taken next to complete the required triangle.
Evaluation at the end of the activity
- How many triangles are possible for given 2 sides and an angle?
- What is the additional condition that is required to be specified if 2 sides and 1 angle is given for constructing a triangle?