Thursday

September 18, 2014

September 18, 2014

Posted by **Anonymous** on Friday, February 17, 2012 at 5:58am.

a. How high is the tip P of the open bridge above the water?

b. When the bridge is open, what is distance from P to Q?

53. A 60-foot drawbridge is 24 feet above water level when closed. When opened the bridge makes an angle of 33 degrees with the horizontal.

a. How high is the tip P of the open bridge above the water?

b. When the bridge is open, what is distance from P to Q?

- trig -
**drwls**, Friday, February 17, 2012 at 6:36amDoes the drawbridge open at the middle, with both ends tilting upward? Where are P and Q?

- trig -
**Steve**, Friday, February 17, 2012 at 3:19pmLet the open bridge form a trapezoid ABPQ, with bases AB and PQ

AB = 60

AP = QB = 30

height is h such that h/30 = sin 33° = .5446

h = 16.3 ft

PQ = 60 - 2*30*cos33° = 9.7 ft

**Answer this Question**

**Related Questions**

trig - The high level bridge, a railway bridge that crosses the Oldman River is ...

Math, Trig - The high level bridge, a railway bridge that crosses the Oldman ...

calculus - alice is flying a kite. Her hand is three feet above ground level and...

trigo - A surveyor made the two sections of the railroad bridge, both at 210 ...

math (trig) - from the top of a bridge over the burlington canal, maria looks ...

trigonometry - A surveyor made two sections of the railroad bridge, both at 210 ...

math - The angle of elevation from a buoy to the top of a bridge is 19 degrees. ...

Algebra 2/ Trig - Igor is flying a kite. he has let out 300 feet of kite string...

Math - Ruth is flying a kite. Her hand is 3 feet above ground level and is ...

I NEED HELP!!!!!MATH!!! - A person flying a kite holds the string 4 feet above ...