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Problems
Contests
National and Regional Contests
India Contests
India Pre-Regional Mathematical Olympiad
2018 India PRMO
5
5
Part of
2018 India PRMO
Problems
(1)
2018 preRMO p5 computational with a tangential trapezium
Source:
8/7/2019
Let
A
B
C
D
ABCD
A
BC
D
be a trapezium in which
A
B
/
/
C
D
AB //CD
A
B
//
C
D
and
A
D
⊥
A
B
AD \perp AB
A
D
⊥
A
B
. Suppose
A
B
C
D
ABCD
A
BC
D
has an incircle which touches
A
B
AB
A
B
at
Q
Q
Q
and
C
D
CD
C
D
at
P
P
P
. Given that
P
C
=
36
PC = 36
PC
=
36
and
Q
B
=
49
QB = 49
QB
=
49
, find
P
Q
PQ
PQ
.
geometry
trapezium
tangential
incircle
trapezoid