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Byju's Answer
Standard X
Mathematics
Calculating Heights and Distances
If the angles...
Question
If the angles of elevation of a tower from two points at a distance
a
and
b
(
a
>
b
)
from its foot on the same side of the tower, have measures
30
o
and
60
o
, then calculate the height of the tower.
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Solution
tan
60
=
H
6
⇒
H
=
√
3
6
tan
30
=
H
a
⇒
H
=
a
√
3
H
×
H
=
√
36
×
a
√
3
=
a
b
H
=
√
a
b
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Similar questions
Q.
The angle of elevation of the top of a tower from a point A on the ground is
30
o
. On moving a distance of 20 metres towards the foot of the tower to a point B the angle of elevation increase to
60
o
. Find the height of the tower and the distance of the tower from the point A.
Q.
The angle of elevations of the top of the tower from the points distance
a
and
b
from the base of tower
(
a
>
b
)
are
30
o
and
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o
, then height of tower is _____________.
Q.
The angle od elevation of the top of tower from two points
A
and
B
lying on the horizontal through the foot of the tower are respectively
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o
and
30
o
. If
A
and
B
are on the same side of the tower and
A
B
=
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m
, then the height of the tower is:
Q.
The angle of elevation of the top of a tower as seen from two points
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situated the same line and at distance '
p
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