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Standard X
Maths
Question
In
Δ
A
B
C
,
segments
A
D
,
B
E
and
C
F
are the altitudes. If
A
B
×
A
C
=
28.80
and
B
E
×
C
F
=
20
,
then
A
D
×
B
C
equals:
24.4
24.2
24.0
23.8
A
24.2
B
23.8
C
24.4
D
24.0
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Solution
Verified by Toppr
Given:
A
B
×
A
C
=
28.8
and
B
E
×
C
F
=
20
⇒
A
B
=
28.8
A
C
and
C
F
=
20
B
E
Since
A
B
⊥
C
F
⇒
A
B
×
C
F
=
A
C
×
B
E
=
B
C
×
A
D
=
x
i.e.
x
=
28.8
×
20
x
⇒
x
2
=
576
⇒
x
=
24
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Q1
In
Δ
A
B
C
,
segments
A
D
,
B
E
and
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B
×
A
C
=
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and
B
E
×
C
F
=
20
,
then
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D
×
B
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