Chord and Diameter

Q.

If the radius of a circle is 8 cm then its diameter is ___.

1. 12 cm

2. 16 cm

3. 10 cm

4. 4 cm

Q.

Length of chord is always greater than radius.

1. False

2. True

Q.

If the radius of a circle increases by 3 times, then the diameter increases by __________ times the radius.

1. 6

2. 8

3. 4

4. 3

Q. What is the diameter of a circle if its radius is 6 cm?

1. 3 cm
2. 18 cm
3. 10 cm
4. 12 cm

Q.

A chord divides a circle into ___

1. Two segments
2. Two sectors
3. Two quadrants
4. Two triangles

Q.

Diameter is the longest possible chord for a circle.

1. True

2. False

Q. If the radius of a circle is 5 cm, the length of its diameter will be .

1. 5 cm
2. 7 cm
3. 10 cm
4. 12 cm

Q.

The statement "Length of chord is always greater than radius" is

1. True
2. False

Q.

Which is the correct relation of radius and diameter?

1. r = 2D

2. D = 2r

3. r = D

4. r = 3D

Q.

The region inscribed by a chord and two radii having endpoints at the end of the chord will be a/an ___.

1. isosceles triangle

2. scalene triangle

3. square

4. parallelogram

Q.

(a) Is every diameter of a circle also a chord?

(b) Is every chord of circle also a diameter?

Q.

If a chord divides a circle into two equal halves, the chord is called ___

1. Diameter
2. Secant
3. Tangent
4. Radius

Q.

If the radius of a pizza is 18cm, then its diameter is _____cm.

1. $2\times 18$

2. 18 + 18

3. $18\times 18$

4. Half of 18

Q. A ribbon of length $4\frac{2}{3}$ cm is cut into equal pieces of of $\frac{2}{3}$ cm each. What is the number of new pieces?

1. 5
2. 6
3. 7
4. 8

Q.

The longest chord of a circle is known as __________

Q.

If A and B are two points on the circle, then the line joining A and B is called as the ____.

1. Point

2. Circumference

3. Center

4. Chord

Q. In a circle, diameter = times radius.

1. 4
2. 2
3. 3

Q.

In the given figure, the red line is:

0

Q.

The figure is of a circle with its center at O. The line PQ is:

1. Diameter of the circle

2. Radius of the circle

3. Segment of the circle

4. Tangent of the circle

Q.

The region inscribed by a chord and two radii having end points at the end of chord will be a / an ___

1. Parallelogram
2. Isosceles triangle
3. Scalene triangle
4. Square

Q.

Can we measure the diameter of point

Q.

The ___ always passes through the centre of the circle.

1. diameter

2. chord

3. arc

4. circumference

Q.

If diameter of a circle is doubled, then

1. Radius will be halved
2. Radius will remain same
3. Radius will decrease
4. Radius will be doubled

Q.

The diameter of a circle is 30 cm. Its radius is ___.

1. 15 cm

2. 60 cm

3. 6 cm

4. 20 cm

Q.

2. Draw a circle of radius$\mathbf{3}\mathbf{.}\mathbf{0}\mathbf{}\mathit{c}\mathit{m}$. Draw the chord AB of the circle passing through the centre of the circle. Now answer the following question.

(ii) What is the name of the two parts of the circle?

Q. In Fig. 9.6, the point C is the image of point A in line I and line segment BC intersects the line I at P.
(b) Is PA= PC

Q.

What is a line segment passing through the center of the circle and having its end points on the circle called?

1. Diameter

2. Shortest chord

3. Radius

4. Circumference

Q.

The diameter of a circle passes through the ____ of a circle.

1. Center

2. Point

3. Circumference

4. Chord

Q.

The line segment joining any two points on the boundary of a circle is called a ___ of the circle.

1. chord

2. radius

3. centre

4. tangent

Q.

In a circle of radius 6cm, which of the following cannot be the length of a chord?

1. 8cm

2. 10cm

3. 14cm

4. 12cm