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RE: SLC S23 Week6 || Geometry with GeoGebra:More on Triangles, Quadrilaterals, and Circles
| Task | Comment | Grade |
|---|---|---|
| 1. Excircles (incircle and circumcircle). | The remaining segments DG, DE, and DF are parts of angle bisectors, not radii. So, I assume you actually intended to depict the radii here. It would be better to rename point D to O. As for the other circles, you do not mark their centers—this is not a problem. However, it would be preferable to show that these circles are indeed tangent to the sides, meaning you should depict the point of tangency and indicate that the radius is perpendicular at the point of tangency. | 1.7/2 |
| 2. Euler's circle | When explaining, you should specify the intersection point (give it a name) – we construct the altitudes, and they will intersect at point E. It would also be necessary to explain what makes points 3, 6, and 9 special. The idea of numbering the points is a great idea. | 1.9✅/2 |
| 3. Spieker circle, Taylor circle, Nagel circle, Apollonius circle, Malfatti circles, or Feuerbach circle. | You have drawn six diagrams, but the general explanatory text is separate from the images, which makes it inconvenient to read. It would be better to use a table where the image is on the left and the corresponding explanatory text is on the right. Alternatively, you could place the relevant part of the text directly below each diagram. | 1.6/2 |
| 4. Quadrilateral and circumscribe circle | You are demonstrating a rectangle, whereas you should be showing an arbitrary quadrilateral. Later, you do demonstrate it, but there are no explanations. | 1.6/2 |
| 5. Quadrilateral with an inscribed circle | Here, the construction and explanation are correct. I would also add that the task was completed in reverse order—meaning that the quadrilateral is circumscribed rather than the circle being inscribed. This is because the direct problem is not always solvable. | 1/1 |
| 6. Kite and quadrilateral with perpendicular diagonals | Everything is correct and well demonstrated, good job. | 1/1 |
Total: 8.8✅ / 10
Yeah you are right, in task 1 I thought these are the radii. I explained the whole process in appollonius circle. But as u said I have to write below each diagram.
In task 4 the question was to construct a quadrilateral and circumscribed a circle around it. that's why I construct a rectangle.
Thank you for the correction!