Radius of a circle is 34cm and the distance of the chord from the centre is 30 cm, find the length of the chord
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Step-by-step explanation:
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Given radius of circle = 34 cm
distance of chord form center = 30 cm
Given OA=34cm
OC=30cm
△OAC is right angled
By applying Pythagorean's theorem
OA
2
=OC
2
+AC
2
AC
2
=OA
2
−OC
2
(34)
2
−(30)
2
=1156−900
=256
AC=
256
=16cm
∴ length of chord = 2AC = AB 2(16 cm)
=32cm
Answered by
4
Answer:
Let AB be the chord And O the centre of circle. let the OD =30 cm ( distance of chord from the centre ). Therefore , AB (length of chord ) = 16 +16= 32cm.
Step-by-step explanation:
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