Introduction to Circle

Q.

Find the diameter of a circle if the radius is:

$5.5cm$

Q. Is a line segment connecting the center of a circle to any point on the circle itself called a radius?

1. No
2. Yes

Q.

The line segment joining the centre to any point on the circle is called the _____ of the circle.

Q. A circle is a locus of set of all points

1. which forms a regular shape
2. that are at a fixed distance from a fixed point
3. that are at an equal distance from two fixed points
4. None of these

Q. All the points which are having the distance from the center of the circle equal to radius of that circle will always lie on.

1. Radius of circle
2. Diameter of circle
3. Chord of the circle
4. Circumference of the circle.

Q. Which of the following statements are correct ?

1. Two diameters always intersect at centre of the circle.
2. Chord of the circle is less or equal to diameter.
3. Diameter of circle is twice the radius.

1. $1$ and $2$ Only
2. $2$ and $3$ Only
3. $3$ and $1$ Only
4. $1$, $2$ and $3$ all correct.

Q. Column I represent the radius of different circles. Match with their respective diameters in Column II.

1. $14$
2. $16$
3. $8$
4. $4$

Q. The radius of a circle is $k$ times its diameter, where $k=$

1. $1$
2. $2$
3. $\frac{1}{3}$
4. $\frac{1}{2}$

Q. Rohan was in the circular field and wanted to scatter seeds in the field. He scattered seeds inside the field and no seed was outside the boundary of the field. So each and every seed had a distance from the center of the field is

1. Greater than or equal to the radius of the field
2. Less than or equal to the radius of the field.

Q. End points of a semicircular track are $50$ m apart, its radius is.

1. $50$ m
2. $25$ m
3. $100$ m
4. Cannot be determined

Q. In the given figure, $O$ is the center of the given circle.
then $AB$ isof the circle. (Radius/Diameter)