Wednesday

March 4, 2015

March 4, 2015

Posted by **AwesomeGuy** on Monday, February 4, 2013 at 10:13pm.

- Trigonometry -
**Reiny**, Monday, February 4, 2013 at 11:01pmMy diagram has the lighthouse as PQ with P at the top and PQ = 350

My ships are at A and B, angle at A = 4° and the angle at B = 6.5°

In the right angled triangle BQP

sin 6.5 = 350/BP

BP = 350/sin 6.5 = .....

now look at triangle ABP

we just found BP

and angle ABP = 173.5°

thus angle APB = 180 - 4 - 173.5 = 2.5°

by the sine law:

AB/sin 2.5 = BP/sin 4°

I will let you finish this, let me know what you got.

- Trigonometry -
**AwesomeGuy**, Tuesday, February 5, 2013 at 1:56amBP= 3091.79

AB/sin 2.5° = 3091.79/sin 4°

3091.785015 sin 2.5° = 134.8617682

134.8617682/sin 4° = 1933.33

Awesome! Thanks for the help!

- Trigonometry -
**AwesomeGuy**, Tuesday, February 5, 2013 at 2:04amSince I have also forgot to label the conversion for the solution, it is ultimately measured in FEET.

**Answer this Question**

**Related Questions**

math - an observer in a lighthouse 300 ft above sea level observes 2 ships ...

Trigonometry - An observer on a cliff 1000 dm above sea level sights two ships ...

geometry - the pilot of a plane flying 2000 meters above sea level observes two ...

math - from a height of 40 m above sea level, two ships are traveling due west. ...

angle - 1.) From the top of a lighthouse 52 metres high,the angles of depression...

math - You have found a summer job manning a lighthouse off the northern coast ...

Trig - I have no idea how to do this problem From an airplane flying 2 ...

maths - a person observed from the top of a light house which is 80 m above the ...

Trigonometry - Angle of Depression Find the angle of depression from the top of ...

Math - 1) Find the angle of depression from the top of a lighthouse 250 feet ...