Wednesday

January 28, 2015

January 28, 2015

Posted by **Shane** on Sunday, March 10, 2013 at 5:46am.

- maths -
**Henry**, Tuesday, March 12, 2013 at 9:51pmWe draw and solve a rt. triangle:

Y = 180 m. = Ht.

X = 850 m = Hor..Distance of ferry.

Z = Hyp. = Line of sight.

tanA = Y/X = 180/850 = 0.21176.

A = 12o = Angle of depression.

**Answer this Question**

**Related Questions**

maths - An observer on top of a building 66 metres high,finds the angle of ...

math - john is standing 100 metres away from a building.the angle of elevationto...

math - john is standing 100 metres away from a building.the angle of elevationto...

Math - A model rocket is launched from a roof of a building. Its path is ...

maths - My kids are stuck on this they've no idea what to do and I can't help ...

geometry - Two buildings are separated by an alley. Joe is looking out of a ...

Trig - a person who eyes are 5 feet above the ground observes the top of a ...

Maths - A fence that is 4 metres tall runs parallel to a tall building at a ...

maths - The scale of a floor plan is 1:200 in the scale diahgram, the width of ...

Math - from a lockout tower 25 meters high, a man observes from a position 1.70 ...