Terms related to circle

Q.

Two or more circles having same centre are called concentric circles.

1. True
2. False

Q.

Describe a figure of a closed curve that is not a polygon.

Q. The perimeter of a circle is called as the circumference of the circle. State true or false.

1. True
2. False

Q.

The distance around a circle is known as its __.

Q.

A circle is a polygon as it is a closed figure.

1. False

2. True

Q. If the radius of a circle is 5 cm, the distance of any point on the boundary of circle from its centre is ___.

1. 5

Q. The radius of a circle is double of its diameter. State true or false.

1. True
2. False

Q. The distance around a circle is called its .

1. circumference
2. area
3. diameter
4. radius

Q. If the radius of a circle is 5 cm, the distance of any point on the boundary of circle from its centre is ___.

1. 5

Q. Two concentric circles will have the same center.

1. False
2. True

Q.

All closed figures are polygons.

1. True
2. False

Q.

Which of the following denotes the length of the curve in red in the given circle?

1. Circumference

2. Segment

3. Centre

4. Radius