Q2 of 9 Page 29

Look at the figure alongside. Write the names of the centre of the circle, the radius, the chord and the diameter.

Firstly, we need to know what is centre, radius, diameter, chord?


Centre: The centre of a circle is a point.



Radius: Any line segment connecting the centre of a circle to any point of a circle.



Chord: A line segment joining any two points of a circle.


Diameter: The chord of a circle which passes through the centre of the circle.



This means, diameter is the longest chord of a circle.


Also, diameter of a circle = 2 r , where r = radius


From the definition defined above and by the given figure in question we can answer the given question


Centre of the given figure is C


Radius of the given figure is seg CL, seg CM, seg CD


Diameter of the given figure is seg LM


Chord of the given figure is seg TR, seg LM (since diameter is the longest chord)


More from this chapter

All 9 →
1

Fill in the blanks.

In the circle with centre O shown alongside,



(1) Seg OD is a ………… .


(2) Seg AB is a ………… .


(3) SEg PQ is a ……….. .


(4) The length of seg AB is …………. that of se OD.

 3

Look at the figure alongside and write whether the following statements are true or false.


(1) Seg TS is not a chord. ( )


(2) Seg KM is a chord. ( )


(3) Seg CK is a radius. ( )


(4) Seg KM is not a diameter. ( )

 1

In a circle, chord MN ≅ chord RT. Chord RT is at a distance of 6 cm from the centre. Find the distance of the chord MN from the centre.

 2

In the figure, seg OM ⊥ seg AB and seg AM = 1.5cm Find the length of seg BM and seg AB.