الدائرة: الدائرة ومحيطها - حل مسائل

The video tutorial explains the basic elements of a circle, including the center, radius, chord, and diameter. It begins by naming the circle based on its center, then defines the radius as the segment from the center to the circle. The tutorial identifies several radii and explains the concept of a chord as a segment with endpoints on the circle. Finally, it defines the diameter as a special chord that passes through the center.

What is the center of a circle named if the center is labeled as X?

• Circle Y

• Circle Z

• Circle X

• Circle W

Which of the following is a correct definition of a radius?

• A line that passes through the center of the circle

• A line that does not touch the circle

• A segment from the center to any point on the circle

• A segment whose endpoints are on the circle

What is a chord in a circle?

• A segment from the center to the circle

• A segment whose endpoints are on the circle

• A segment that does not touch the circle

• A line that passes through the center

Which of the following is an example of a chord in the given circle?

• XZ

• RS

• XT

• XV

What distinguishes a diameter from other chords in a circle?

• It is the longest chord

• It does not pass through the center

• It passes through the center

• It is shorter than other chords