Terms Related to Circle

Q. How many sides does a circle have?

1. 1
2. 2
3. 3
4. 0

Q.

Is a circle a regular polygon?

Q.

An arc is a ___________ when its ends are the ends of a diameter.

Q.

The number of ways that $8$ beads of different colors be string as a necklace is?

1. $2520$

2. $2880$

3. $5040$

4. $4320$

Q.

Is every diameter of a circle also a chord?

Q. A region in the interior of a circle enclosed by an arc on one side and a pair of radii on the other two sides is called ____

1. A segment
2. A sector
3. the radius
4. the circumference

Q.

Question 73

In the given figure, O is the centre of the circle,

a) Name all chords of the circle.

b) Name all radii of the circle.

c) Name a chord, which is not the diameter of the circle.

d) Shade sectors OAC and OPB.

e) Shade smaller segment of the circle formed by CP.

Q.

An arc which is smaller than a semicircle is a major arc.

1. True
2. False

Q. How to find the perimeter of a heart and a circle

Q.

Into how many parts does a diameter divide a circle?

1. Infinite

2. Two

3. Three

4. Four

Q. Identify the radius in the figure:

1. PQ
2. BC
3. AO
4. AB

Q.

Question 3(h):

Draw any circle and mark:

an arc

Q.

The $10$ students of Batch B feel they have some conceptual doubt on ‘Circular Permutation’. Mr. Sood called them in discussion room and asked them to sit down around a circular table which is surrounded by $13$ chairs. Mr. Sood told that his adjacent seat should not remain empty. The number of ways in which the students can sit around a round table if Mr. Sood also sits on a chair is

1. ${}^{10}C_2\times {}^{10}C_8$

2. ${}^{10}C_2\times 2!\times {}^{10}C_8\times 8!$

3. ${}^{10}C_3\times 3!\times {}^{10}C_7$

4. None of these

Q.

Question 2(b):

Is every chord of a circle also a diameter?

Q. The longest chord of a circle is equal to its

(a) radius
(b) diameter
(c) circumference
(d) perimeter

Q. Identify the diameter in the figure:

1. AO
2. BO
3. AB
4. AC

Q. What type of an angle is inscribed in a minor segment?

1. An obtuse angle
2. A right angle
3. A straight angle
4. An acute angle

Q.

The area enclosed by an arc and its corresponding chord of a circle is called a_______.

Q. Which of the following statements represent ray?

1. Red region
2. Blue region
3. Yellow region
4. Red and blue region

Q.

Question 3(d):

Draw any circle and mark:
A sector.

Q.

In the given figure, O is the centre of the circle,

a) Name a chord, which is not the diameter of the circle.

b) Shade sectors OAC and OPB.

c) Shade smaller segment of the circle formed by CP.

[3 marks]
[Parts of a Circle]

Q. Identify and count the number of points in the interior of the circle.

1. 
   7
2. 
   2
3. 
   4
4. 
   5

Q.

Question 1(h):

From the figure, identify:
A segment

Q.

Draw any circle and mark

(a) Its centre (e) a segment

(b) a radius (f) a point in its interior

(c) a diameter (g) a point in its exterior

(d) a sector (h) an arc

Q.

The distance around a circle is called its

1. Segment

2. Radius

3. Circumference

4. Sector

Q.

1. State, which of the following statements are true and which are false.

(ii) Radius of a circle is not always half of its diameter.

1. True
2. False

Q.

In the given figure, O is the centre of the circle,

a) Name a chord, which is not the diameter of the circle.

b) Shade sectors OAC and OPB.

c) Shade smaller segment of the circle formed by CP.

[3 marks]

Q. In the picture given below, there are certain number of points in the interior and the exterior of the circle:
What is the difference between the number of points in the interior of the circle and the number of points in the exterior of the circle?

1. 
   3
2. 
   8
3. 
   1
4. 
   4

Q.

In the below figure, the shaded region I represents a ______ and region II represents a ______.

1. sector, arc

2. segment, arc

3. segment, sector

4. sector, segment

Q. Draw a circle of diameter 10 cm. Draw two radii of the circles such that the angle between these radii is ${60}^{\circ }$. Shade the minor sector obtained. Write a special name for this sector.