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Manipal Entrance Test 2014 Math Paper
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© examsnet.com
Question : 7
Total: 80
A circle of radius 2 is touching both the axes and a circle with centre (6, 5). The distance between their centres is
8 units
5 units
7 units
None of these
Validate
Solution:
Radius of smaller circle is r = 2 cm.
Since, it is touching both the axes, so its centre is (2,2).
The distance between their centres
=
r
+
R
=
√
(
5
−
2
)
2
+
(
6
−
2
)
2
=
√
3
2
+
4
2
=
√
25
=
5
units
© examsnet.com
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