angle of elevation formula
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From Encyclopedia
elevationelÂ·eÂ·vaÂ·tion / ËŒelÉ™ËˆvÄ�shÉ™n/ â€¢ n. 1. the action or fact of elevating or being elevated: her sudden elevation to the cabinet. âˆŽÂ augmentation of or increase in the amount or level of something: âˆŽÂ (in a Christian Mass) the raising of the consecrated elements for adoration. 2. height above a given level, esp. sea level: a network of microclimates created by sharp differences in elevation a total elevation gain of 3,995 feet. âˆŽÂ a high place or position: most early plantation development was at the higher elevations. âˆŽÂ the angle of something with the horizontal, esp. of a gun or of the direction of a celestial object. âˆŽÂ Ballet the ability of a dancer to attain height in jumps. 3. a particular side of a building: a burglar alarm was prominently displayed on the front elevation. âˆŽÂ a drawing of the front, side, or back of a house or other building: a set of plans and elevations. DERIVATIVES: elÂ·eÂ·vaÂ·tionÂ·al adj.
From Yahoo Answers
Question:A landscaper is making a retaining wall to shore up the side of a hill. to ensure against collapse, the wall should make a 75 degree angle with the ground.
If the wall is 25 feet, what's the height of the hill?
A. 6.5 ft
B. 25.9 ft
C. 24.1 ft
D. 93.3 ft
its a bonus question off of my quiz that i cant figure out :[
the wording of the question is confusing.
Answers:The height of the wall itself is 25 feet, and it makes a 75 degree angle with the ground. This can be drawn as a right triangle with a hypotenuse of 25, and the angle at the ground with the hypotenuse of 75 degrees. The height of the wall will be the vertical side opposite the 75 degree angle.
The trig ratio that describes the problem is sin 75 = x / 25. Since x has to be less than 25 (and just a little bit less, the answer is 24.1 feet ). (the hypotenuse always is the longest side).
Question:1) TRUE or FALSE: if three sides of a triangle measure 0.7cm , 2.4cm and 2.5cm, the triangle cannot be a right triangle
2) The odometer on a car lets us know when the car is running out of gas. The pointer on the odometer is 6 cm long. When the angle of elevation of the pointer is 32 , the car is low on gas. Find the height of the tip of the odometer when the car is low on gas.
-5cm
-32cm
3.2cm
Answers:<< TRUE or FALSE: if three sides of a triangle measure 0.7cm , 2.4cm and 2.5cm, the triangle cannot be a right triangle >>
If the above is a right triangle, then it must satisfy the Pythagorean theorem, i.e.,
2.5^2 = 0.7^2 + 2.4^2
6.25 = 0.49 + 5.76
6.25 = 6.25
Since the left hand side is equal to the right hand side, the dimensions satisfy the Pythagorean theorem, hence the triangle is a right triangle.
<< The odometer on a car lets us know when the car is running out of gas. The pointer on the odometer is 6 cm long. When the angle of elevation of the pointer is 32 , the car is low on gas. Find the height of the tip of the odometer when the car is low on gas.>>
h = 6 * sin 32
h = 3.2 cm.
Hope this helps.
Question:observer, 220 feet away, is 31 degrees. If the balloon is on the same vertical plane as the two observers are in between them, determine the distance of the balloon and from the first observer.
Answers:The distance is 105 feet.
Please make sure your teacher gives me the credit.
Question:The faces on Mount Rushmore are 60 feet tall. A visitor sees the top of George Washingtons head at a 48 degree angle of elevation and his chin at a 44.76 degree angle of elevation. Find the height of Mount Rushmore.
My pre calc book asks a bunch of questions such as this, but there is no explanantion on how to SOLVE them. Faulty Glencoe D:< Please help?
Answers:x = height to top of George's head = height of Mount Rushmore.
x - 60 = height to bottom of George's chin.
y = horizontal distance from visitor to George.
ytan(44.76 ) = x-60
ytan(48 ) = x
tan(44.76 )/tan(48 ) = (x-60)/x
xtan(44.76) = xtan(48) - 60tan48
x(tan44.76 - tan48) = -60tan48
x = 60tan48/(tan48-tan44.76)
x 560.2 feet.
Height of Mount Rushmore = 560.2 feet.
...
From Youtube
Modern Warefare 2 Glitches: Derail Elevator Glitch Tutorial :How to do the elevator glitch on Derail. Step One: 0:01 - 0:10 In the back corner of Derail jump on to the gas tank and go up to the building. Make sure you are standing up and you are right against it facing straight at it. Step Two: 0:26 - 0:36 Turn your aimer right at a 45 degree angle then go in prone. without moving your aimer slide to the left untill you are un able to get out of prone. next turn your aimer back to normal from your 45 degree angle so you are facing straight at the building once again. Step Three: 0:38 - 0:45 Pause your game and go to the options menu. Then turn on Legacy Southpaw. Step Four: 0:45 - 2:54 Once Legacy Southpaw is on only use the left analog stick and the B or O button depending what game counsel you have. Use the Left analog stick to strafe left and right. you will find that in some spots you are able to get up from prone and in others you cant. Keep moving until you find a spot that lets you get up. After you find that spot go back into prone and move back the way you came making sure to check each spot by trying to get out of prone. The elevator spot is between where you can get up and where you can"t get up. You have to be very patient on this step and make small movements. Step Five: 2:41 - 3:25 Once you find the elevator make sure to turn off legacy southpaw before you make any movements. While you are moving up don't make any movements because it is very easy to fall off. Thats it.
The Shining Elevator of Blood recreated with RealFlow & Lightwave (HD) :This is a half-scale, all CG simulation of the 'elevator of blood' scene from The Shining, created just for fun in Lightwave 9.6. I never expected the blood volume to look exactly like the real thing due to a practical limitation in the amount of particles needed. The RealFlow fluid sim uses only about 1.6 million particles when at least 20 million are needed and therefore it appears thicker and 'blobbyer' than the actual liquid. It took a month to render on on I-7, 3.2gh quad core, so it was not practical to attempt more particles. Post processing was applied in Fusion 6. In my work, I am often required to integrate CG into photographic plates without any practical information from set such as the lens used, the camera height, inclination, dimensions, or the position and intensity of lights. Over the years I have developed proficiency at 'eyeballing' these things. I carefully studied every shot of hallways in The Shining to come up with the dimensions. I settled on a 50mm lens, and estimated the set to be half scale since Kubrick was a perfectionist and any smaller scale liquids would look less realistic and blobby. The angles of the set indicate that the camera was placed a few feet to the right and panned left to appear centered. In the movie, there are actually 3 different angles of this same scene. This leads me to suspect there may have been another camera centered on the miniature set but the footage was not used. I determined the 140fps frame speed by using Fusion ...