34. Two concentric circles are of radi 21 cm and 29 cmn Find the km/h of the chord of the larger circle which touches the smaller cincel.
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Answered by
1
Answer:
576
Step-by-step explanation:
AB=?
In ΔOAC-
OA
2
=α
2
+AC
2
25
2
=7
2
+AC
2
AC
2
=625−49=576
AC=24
Similarly
In ΔOCB-
OB
2
=OC
2
+BC
2
25
2
=7
2
+BC
2
BC
2
=625−49
BC=24
AB=AC+CB
AB=48cm
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