. In Fig. 10.39, two circles of radii 10 cm and 12 cm
intersect each other at A and B. If the length of
common chord is 16 cm, find the distance between
their centres.
А
12 cm
10 cm
16 cm
0
6
B
Fig. 10.39
[Hints : Mark mid point of AB as M. Join O to B
and O' to B. Prove AAOO'ABOO' and AAOM =
ABOM, AM
1
AB and OB
2.
00']
2
Answers
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Answer:
a=4
b=6
Step-by-step explanation:
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