Answer:

1.circle

2.interior

3.segment

4.circumference

5.infinite

6.semicircle

7.parts

Verified answer

Answer:

1.circle

2.circular region

3.A segment of circle

4.the circumference

5.infinite of chords

6.Radius = Diameter/2.

7.equal parts

Step-by-step explanation:

1. A radius is a line segment with one endpoint at the center of the circle and the other endpoint on the circle.

2. The part of the plane consisting of the circle and its interior is called the circular region. Circumference: The length of the boundary that marks out the circle is called the circumference. Chord of a circle: A chord is a line segment whose end points lie on the circumference.

3. A segment of a circle is the region bounded by a chord and the arc subtended by the chord. The region between the chord and the minor arc is called the minor segment, and that between the chord and the major arc is called the major segment.

4. Definition. The distance around the boundary of a circle is called the circumference. The distance across a circle through the centre is called the diameter.

5. These lines are also drawn from one point of the circle and are touching the other point of the same circle. Thus we conclude that a circle has an infinite number of chords.

6. The radius of a circle is a line segment that starts from the center of a circle and ends at the circumference of the circle. It is half the length of the diameter of a circle, i.e., Radius = Diameter/2.

7. A diameter divides the circle into two equal parts. Each part is called a semicircle. If a radius is drawn cutting a semicircle into two equal parts, then each part is called a quadrant.