Math, asked by 23gardunoi, 2 days ago

A light house is 85 m high. The angle of depression from the top of the lighthouse to a ship out at sea is 81. How far from the base of the lighthouse is the ship?

Answers

Answered by skirankumar895

0

Answer:

Height of tower 80 m.

Two ships are at B and C.

Following the given figure, we can say

AC

AD

=tan60˚⇒

3

=

AC

80

⇒AC=

3

80

AB

AD

=tan30˚⇒

3

1

=

AB

80

⇒AB=80×

3

⇒AC+BC=80

3

⇒

3

80

+BC=80

3

⇒BC=80

3

−

3

80

BC=

3

160

BC=92.37 m

Nearest integer =92

Step-by-step explanation:

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