find the sun's altitude if the shadow of a 15 m high tower
is 15 underoot3 m.
Answers
Answered by
0
Answer:
30
Step-by-step explanation:
n fig. AB is the tower , BC is the length of the shadow of tower when altitude is 30
∘
i.e the angle of elevation of the top of the tower from the tip of the shadow is 30
∘
and DB is the length of the shadow, when the angle of elevation is 60
∘
Given, BC = 30 m
In △ABC
tan30
∘
=
BC
AB
⇒
3
1
=
30
AB
⇒AB=
3
30
=10
3
m
Now,
In △ABD
tan60
∘
=
BD
AB
⇒
3
=
BD
10
3
⇒BD=10m
Option C is correct.
Similar questions