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Byju's Answer
Standard VII
Mathematics
Properties of Isosceles and Equilateral Triangles
In ABC,XY∥ ...
Question
In
△
A
B
C
,
X
Y
∥
B
C
,
A
Y
C
Y
=
1
2
and
A
X
=
4
. Find
B
X
.
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Solution
Given that:
In
△
A
B
C
,
X
Y
∥
B
C
,
A
Y
C
Y
=
1
2
and
A
B
=
4
To find:
B
X
=
?
Solution:
Since,
A
Y
C
Y
=
1
2
∴
A
Y
A
C
=
1
3
Now,
X
Y
∥
B
C
∴
△
A
X
Y
∼
△
A
B
C
or,,
A
Y
A
C
=
A
X
A
B
or,
1
3
=
4
A
B
or,
A
B
=
12
∴
B
X
=
A
B
−
A
X
=
12
−
4
=
8
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1
Similar questions
Q.
In the adjoining figure
X
Y
|
|
B
C
.
A
X
=
p
−
3
,
B
X
=
2
p
−
2
and
A
Y
C
Y
=
1
4
. Find '
p
'.
Q.
In the adjacent figure
X
Y
∥
B
C
find the length of
A
Y
and
C
Y
Q.
X
Y
is drawn parallel to the base
B
C
of a
Δ
A
B
C
cutting
A
B
at
X
and
A
C
at
Y
. If
A
B
=
4
B
X
and
C
Y
=
2
c
m
,
then the value of
A
Y
is equal to :
Q.
In the following figure,
∠
AXY =
∠
AYX. If
B
X
A
X
=
C
Y
A
Y
, show that triangle ABC is isosceles.
Q.
In the following figure,
∠
A
X
Y
=
∠
A
Y
X
.
If
B
X
A
X
=
C
Y
A
Y
,
then the triangle ABC is isosceles.
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Properties of Isosceles and Equilateral Triangles
Standard VII Mathematics
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