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Byju's Answer
Standard IX
Mathematics
Triangles between Same Parallels
ABC is a tria...
Question
ABC is a triangle and PQ is a Straight line meeting AB in P and AC in Q. If
A
P
=
1
cm and
B
P
=
3
cm,
A
Q
=
1.5
cm,
C
Q
=
4.5
cm.Prove
△
A
B
C
∼
△
A
P
Q
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Solution
Given In
△
A
B
C
,
A
P
=
1
c
m
,
B
P
=
3
c
m
,
A
Q
=
1.5
c
m
,
C
Q
=
4.5
c
m
A
P
B
P
=
1
3
A
Q
C
Q
=
1.5
4.5
=
1
3
∴
A
P
B
P
=
A
Q
C
Q
Hence
P
Q
∥
B
C
.
∠
A
is common in
△
A
B
C
and
△
A
P
Q
.
Hence
△
A
P
Q
∼
△
A
B
C
.
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Similar questions
Q.
A
B
C
is a triangle and
P
Q
is a straight line meeting
A
B
in
P
and
A
C
in
Q
. If
A
P
=
1
cm,
P
B
=
3
cm,
A
Q
=
1.5
cm,
Q
C
=
4.5
m, prove that area of
△
A
P
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is one- sixteenth of the area of
△
A
B
C
.
Q.
ABC is a triangle and PQ is a straight line meeting AB in P and AC in Q. If AP = 1 cm, PB = 3 cm, AQ = 1.5 cm, QC = 4.5 m, prove that the area of ∆APQ is one-sixteenth of the area of ∆ABC.