Thursday

September 18, 2014

September 18, 2014

Posted by **holly** on Monday, March 12, 2007 at 2:04am.

a tower stands on top of a cliff. at a distance of 55m from the foot of the cliff, the angles of elevation of the top of the tower as well as the cliff are 60degrees and 45degrees respectively. what is the height of the tower?

Draw a figure. Convince yourself that

Cliff height = 55 tan 45

Cliff height + Tower height = 55 tan 60

Now one bit of subtraction will give you the answer

**Answer this Question**

**Related Questions**

formal geomerty - A person in a small boat sights the top of a 40-foot ...

Right angle trigonometry - A sailor sights both the bottom and top of a ...

trigonometry - A lighthouse BC of unknown height stands on the edge of a cliff ...

trigo - from the top of a cliff 126m high, the angle of depression of a boat is ...

trigonometry - R and S are in the same horizontal plane as the base of a cliff, ...

Science - A cannon ball is fired horizontally with a velocity of 50m/s from the ...

Physics - A cannon ball is fired horizontally with a velocity of 50m/s from the ...

Physics - A cannon ball is fired horizontally with a velocity of 50m/s from the ...

trig - A plane is flying 12,000 feet horizontally from a tall, vertical cliff. ...

math - from a point 50 m from the base of a cliff, a surveyor measures the angle...