Math, asked by shazia999, 1 year ago

As observed from the top of a light house 100m high above sea level, the angle of depression of ship, sailing directly towards it, cgsnges 30 °to 45°. Determine the distance travelled by the ship furing the period of observations...

Answers

Answered by Anonymous
3

Answer:


hey,

height = AB= 100

BC= x

CD=y


triangle ABC

tan60= AB/BC

√3= 100/x

x= 100/√3


In triangle ABD

tan30= AB/CD

1/√3= 100/y

y= 100√3


as we know

BD=BC+ CD

y= x+ CD

CD= y-x

putting the values we get


CD= 100 x (3-1) /√3

=100 x 2/√3

=200/√3


thanks.......... ^^


shazia999: kaise h
shazia999: shi batana jhutt mt bolna
shazia999: pic achi ni h na....mujhe pta tha
shazia999: ni...muje pta h aap mera dil rakhne ke liye keh re ho
shazia999: f9
shazia999: hii
Similar questions