Question

1.DistanceofchordABfromthecentreofacircleis8cm.Length

ofthechordABis12cm.Findthediameterofthecircle.​

Answer 1

Answer:

Now,

=>OA

2

=OM

2

+MA

2

=>OA

2

=8

2

+6

2

(Since,

MA is half of the chord AB )

=>OA=Radius=10cm

Let the other chord be PQ.

Similarly,

=>OP

2

=ON

2

+NP

2

=>10

2

=6

2

+NP

2

(Since, NP is half of the chord PQ )

=>NP=8cm

SO, PQ=2×NP=16cm