what is the length of a chord which is 3 cms away from the centre of a circle having radius 5cms ?
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Answered by
2
Answer:
The length of the chord of distance 3cm from its centre is 8cm
Answered by
1
Answer:
Radius of a circle is 5cm
therefore OA= 5cm
perpendicular drawn to the chord from the centre bisects the chord
therefore AM=MB
triangle OMA is right angled triangle at M
∠OMA=90
∘
by apply pythogoras theorm
OA
2
=OM
2
+MA
2
MA=
OA
2
−OM
2
MA=
5
2
−3
2
MA=
16
MA=4
therefore the length of chord AB=2MA
AB=8cm
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