Question

Как путём перегибания можно найти центр круга???

Answer 1

Надо согнуть круг пополам. Потом с другой стороны, повернув на глаз прежний сгиб на 90 градусов, тоже согнуть пополам. Точка пересечения двух сгибов будет центром круга. 

Answer 2

Finding the Center of a Circle by Bending

To find the center of a circle by bending, you can use a method called "compass and straightedge construction." This method involves using a compass and a straightedge to create geometric constructions. Here's a step-by-step guide on how to find the center of a circle by bending:

1. Draw Two Chords: Start by drawing two chords on the circle. A chord is a line segment with both endpoints on the circle.

2. Bisect the Chords: Use a compass to bisect each chord. To bisect a chord, place the compass on one endpoint of the chord and draw an arc that intersects the chord. Then, without changing the compass width, place the compass on the other endpoint of the chord and draw another arc that intersects the first arc. The intersection point of the two arcs is the midpoint of the chord.

3. Draw a Perpendicular Bisector: Use a straightedge to draw a line that passes through the midpoints of the two chords and is perpendicular to both chords. The intersection of this line with the circle is the center of the circle.

This method relies on the properties of perpendicular bisectors and the fact that the center of a circle is equidistant from any point on the circle.

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Additional Considerations

It's important to note that the method described above assumes the availability of a compass and a straightedge. Additionally, precision and accuracy in the construction process are crucial for obtaining an accurate result.