Question

a circle has radius 25 cm, a chord at distance of 7cm from its centre find chords length​

Answer 1

Answer:

Given ,OD=7cm,OB=25cm

Since OD⊥BC,itbisectsBC,i.eBD=DC

In △OBD,

BD

2

=OB

2

−OD

2

=25

2

−7

2

=625−49=576

⇒BD=

576

=24

∴ChordBC=2×24cm=48

Step-by-step explanation:

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