Question

A vertical tower stands on the ground and is surmounted by a flag-staff of height 5m. From a point on the
ground, the angle of elevation of the bottom of the flag is 45° and that of the top of the flag-staff is 60°
Find the height of the tower.
The angle of elevation of an aeroplane from a point on the ground is 60°.find the height of the tower​

Answer 1

Answer:

ANSWER

In ΔBAP

tan30

o

=

AP

BA

⇒

l

h

=

3

1

l=

3

h

⇒l=3

3

m

Now,

In ΔDAP

tan60

o

=

AP

DA

⇒

3

=

3

h

6+h

⇒3h=6+h

2h=6

h=3m