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In this example, archeologists have discovered a portion of a circular dinner plate. We can determine the diameter of the plate by utilizing some geometric theorems. According to Theorems 10.5 and 10.6, a diameter acts as the perpendicular bisector of any chord in the circle. Additionally, Theorem 10.10 states that the hypotenuse of an inscribed right triangle is also a diameter. By placing the image of the plate in GeoGebra, we can analyze it and apply these principles to find the plate's diameter effectively.
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Geometry 10.3 Example
Dinner Plate • Archeologists found a portion of a circular dinner plate. Describe a method to determine the diameter of the plate.
Dinner Plate • A few hints: • Theorems 10.5 and 10.6 say that a diameter is a perpendicular bisector of a chord • Theorem 10.10 says that the hypotenuse of an inscribed right triangle is a diameter
Dinner Plate • In order to analyze this, let’s place the image in GeoGebra and analyze it that way • Link to GeoGebra file