15.From a point on the ground,
the top of a tree is seen to have
an angle of elevation 60%. The
distance between the tree and
a point is 50 m. Calculate the
height of the tree?
O 67.2 m
O 56,8 m
O 66,6 m
Varcel
O 86,6 m
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10th
Maths
Some Applications of Trigonometry
Heights and Distances
From a point on the ground ...
MATHS
From a point on the ground which is at a distance of 50 m from the foot of the tower, the angle of elevation of the top of the tower is observed to be 30
o
. Find the height of the tower.
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ANSWER
Let the height of the tower be h m.
From △PAB,tan30
o
=
PA
AB
3
1
=
50
h
h=
3
50
Hence, the height of the tower is
3
50
m.
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