| SimReal: Mathematics - Geometry - Triangle - Computation | |
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An application that generates an unlimited number of triangles and gives the possibility to do measurements and computations of angles and sides in triangles.
You can select between general triangles or right triangles.
After measurement and/or computations you will have feedback so you can know if you have been doing the measurements and/or computations in a right way. By default you will be listing to a video simulation about triangle computations ('SimV'). You can at any time select 'Sim' to do the interactive simulation by yourself. Some information how to do the interactive simulation (you will have the same information in the video simulation): Start the triangle program by marking the checkbox '2D' in the control window. Select 'Triangle' in the control window. Click the pushbutton 'Exercise' in the control window. Mark the checkbox 'Angle 90' if you want right triangles. Click the pushbutton 'NTriangle' to generate a triangle. You will now see a triangle with some information (angles and/or sides) in the simulation window and you can do measurements and/or computations of the other angles and/or sides in this triangle. Measurements: To mesasure length draw a help-vector down to the left into the simulation window. You can move this vector by the mouse in the middle of the vector. You can change lengt and/or direction by the mouse at the end of the vector. You will find information about length and direction of the vector in the tool line below the simulation window. To measure angle with a protractor instead select 'deg' in the universal measurement tool in the tool line below the simulation window. Mark the right checkbox in the universal measurement tool and you will see a protractor. You can move, rotate and flip the protractor. You can also use a help vector in the protractor so you can measure angles more precisely. You can read the measured value in the universal measure instrument. Computations: Use the calculator to compute angles and/or sides in the triangle. Normally this will be more accurate than measurements. Control your result:Write your measured/computed value(s) in the input window. If you want to control a single value in the input window, click the pushbutton 'Solution S'. If you want to control all the values in the input window, click the pushbutton 'Solution T'. If your answer is correct, you will have a green sphere placed behind your answer. If your answer is wrong, you will have a red sphere placed behind your answer. You also see you have an error tolerance (default 5%). Click 'NTriangle' again to generate new triangles. |
