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CDS Model Paper 1 Mathematics
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© examsnet.com
Question : 61
Total: 100
A and B are centres of the two circles whose radii are
5
cm
and
2
cm
respectively. The direct common tangents to the circles meet AB extended at P. Then P divides AB.
externally in the ratio
5
:
2
internally in the ratio
2
:
5
internally in the ratio
5
:
2
externally in the ratio
7
:
2
Validate
Solution:
Δ
PQB
and
Δ
PRA
are similar triangle by AAA criteria.
∴
AP
BP
=
AR
BQ
=
5
2
P divides
AB
externally in the ratio of
5
:
2
© examsnet.com
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