Question

C is the centre of each of the circles shown below. Name the radii, chords and diameters of the circles.
(1)




(2)

(3)

Answer 1

The line segment joining any two points on a circle is called a chord.
All those chords that pass through the centre of a circle are called diameters of a circle.

(1) The chords in the given circle are: seg RG, seg AH, seg AB, seg IH, and seg MX
The diameters in the given circle are: seg IH,seg AB and seg MX
The radii in the given circle are: seg IC, seg BC, seg MC, seg CX, seg CA, and seg CH

(2) The chords in the given circle are: seg RO, seg NQ, seg KS, seg AH, and seg AU
The diameters in the given circle are: seg NQ and seg AU
The radii in the given circle are: seg CN, seg CA, seg CU, seg CQ, and seg CS

(3) The chords in the given circle are: seg AH, seg KH, seg KR, seg SH, and seg SR
The diameters in the given circle are: seg SH and seg KR
The radii in the given circle are: seg CS, seg CH, seg CE, seg CK, and seg CR