Question

1. In a circle with centre P, AB is a chord. If the
length of a radius is 17 cm and AB = 30 cm.
then find the distance of AB from the centre P.​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

Answer

Let AB be the chord with length =16cm

OA=radius=17cm

Now, OC⊥AB

Then, AC=CB=8cm (perpendicular drawn from the centre of the circle to the chord,bisects the chord)

∴OC=

(OA

2

−AC

2

)

=

(17

2

−8

2

)

=

(225)

=15cm

Hence, OC=15cm