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Mathematics
Mathematics
Problem
In
△
D
E
F
\triangle DEF
△
D
E
F
, points
P
P
P
on
D
E
DE
D
E
and
Q
Q
Q
on
D
F
DF
D
F
are such that
P
Q
∥
E
F
PQ \parallel EF
P
Q
∥
E
F
. If
D
Q
Q
F
=
2
7
\dfrac{DQ}{QF}=\dfrac{2}{7}
QF
D
Q
=
7
2
and
D
E
=
15
cm
DE = 15\,\text{cm}
D
E
=
15
cm
, determine the length
D
P
DP
D
P
.
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