This question seems like it requires calculus, but it actually has a much more clever solution

This question seems like it requires calculus, but it actually has a much more clever solution

Assessment

Interactive Video

Physics, Science

11th Grade - University

Hard

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The video tutorial explores the problem of finding the shortest path that starts at a point P, touches all sides of a polygon, and returns to the starting point. The instructor introduces a simpler problem involving a point Q and uses reflections to demonstrate that the shortest path is a straight line. By reflecting the polygon and its points, the instructor shows how to find the shortest path from P to itself, touching all sides. The method relies on geometric reflections to maintain path length while connecting all sides.

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5 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the shortest path that starts at point P and touches all sides before returning to the starting location?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

How would you approach solving the problem of finding the shortest path if given side lengths and angles?

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

Explain the method used to reflect the polygon and points over the bottom side to find the shortest path.

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the significance of reflecting the polygon multiple times in finding the shortest path from P2?

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5.

OPEN ENDED QUESTION

3 mins • 1 pt

Why is a straight line considered the shortest path in the context of this problem?

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