Are angle dimension's used on blueprints?
373853
I think right angles are, because we just did that in my class and thats what i heared. good luck
1063
Typically the 3-4-5 triangle method is used during contruction of some sort where you need to ensure a right angle.  You often know the length of one side of something and want to know where to place the other side so that it is at right angles.  I used this to frame our basement walls so they would be "square" for drywalling and laying the floor.
42250
what do you mean by angle ruler? protractor, or those triangle shaped ones? if u mean protractor, then you have to line up the point to the hole at the bottom middle hole. supposed to be one straight line that goes right or left. if it goes left, i think that you read the top row. if it goes right, the bottom row. hope that helps :)!
179545
Wow, that last person used way too much stuff.\n\nDraw in one diagonal of parallelogram ABCD, say BD.  You have congruent angles ABD and BDC, ADB and DBC because they are alternate interior angles and BD is congruent to itself.  The two triangles are congruent (ASA) which makes the parts you want congruent by CPCTC.
115042
I believe you are talking about Cartesian coordinates, right?
179075
Architects use parts of an inch =1'\nSo if shown a scale 1/8"=1'\nA line that measures 1" the length is 8'\n\nOn the bad side on nearly every floorplan I've seen had an open dimension, usually at one end of a building with a dimension like 8'3&3/4"+/-
409326
I haven't used this, but it looks fairly simple (as opposed to the professional mapping products):\n\nhttp://www.smartdraw.com/specials/geography.asp?type=12195&id=12195\n\nGood luck
463511
Use the double angle identities.
317974
Every point in the x,y plane has a unique set of Cartesian (rectangular) coordinates.\nSince no ray has a unique angle measure, (e.g. 30 and 390, -330, etc. all look like the same # of degrees) Polar Coordinates are not unique.
686717
base area depends on what pentagonal figure you have as base. The link in source will help.
765889
1. All angles are equal\n2. All angles are less than 180° \n3. Size of each angle = (180 - 360/n)° where n = number of sides
140502
The trigonometric identities have as their primary purpose to simplify calculations.  For example, why evaluate 2sinxcosx when you can evaluate sin2x.\n\nAs for the applications, oblique triangles are used in surveying and mapping.  For example, suppose you want to know your distance from an object on the opposite side of a river.  You can mark off a line of a fixed distance, say 100ft.  Then, go to the opposite ends of the line and use a transit to measure the angle between the object and the line you measured.  You can now determine all three sides with this information.
706522
It's often handy to draw yourself out a little sketch.  From it you can see the location of the given point.\n\nTo identify the angle the given point makes with the x-axis and the y-axis use trigonometry.  Switch to radians.\n tan Θ = opp./ adj.\n Θ = tan^-1 opp./ adj.\n Θ = tan^-1 (-0∙4425./ -0∙8968)\n Θ = tan^-1 (-0∙493 210 52)\n Θ =  0∙458 370 613 rad.\n    This is the value of the angle below the x-axis.  You need to include the angle above the x-axis, which is 180º or π radians.\n Θ =  0∙458 370 613 rad. + π rad.\n Θ =  (0∙458 370 613 + 3∙14) rad.\n Θ =  3∙598 370 613 rad.\n Θ ≈  3∙6 rad.
943665
this is impossible to answer, there are many shapes that could be made this way.  do you have any other information like right angles or angles at corners?
934477
Why are you asking this again?  I just answered you.\n\nAgain:\nThere are "levels" to dimensioning.\n\nThe major dimensions are the overall height, width, depth of the whole object. \n\nThe next level down will sub-divide that major dimension to describe sub-components.\n\nAs example: Consider a house plan. \n* From one extreme side to the other extreme side is a MAJOR dimension (the overall width). \n* In between those extreme outer wall edges are interior walls that need to be located as well. So the next layer of dimensions (MINOR) still goes from one side to the other but pulls lots of dimensions from lots of walls. \n* Also, there are porches, corners for inset windows, etc Another MINOR level picks up those points.\n* And so on.\n\nIn your 3D drawing: \n* you only have 6 MAJOR dimensions to a cube shape anyway. Depending on how you rotate the drawing object, you see 3 of them and 3 will be hidden (back side).
777666
Well, each angle has whatever value it happens to have. The only limitation is that the values can't be negative or greater than 360 degrees, and the total for all of the angles must be the appropriate value for a polygon with that number of sides (180 degrees for a triangle, 360 for a quadrilateral, 540 for a pentagon, etc. ... in general, 180 (n-2), where n is the number of sides).\n\nBecause you say it is a concave polygon, you are indicating that at least one angle exceeds 180 degrees. Obviously, this can't be a triangle (since the sum of ALL the angles of a triangle equals 180 degrees). But it can be any other polygon. The fact that one angle exceeds 180 degrees does not change the criteria given above (each angle greater than 0 and less than 360, and the sum of the angles being appropriate for the number of sides of the polygon).
907694
I'm not sure if I get your question right, but I think you're referring to lookup tables (or LUTs).  I think the easiest way to explain the use of these, is through an example from the old days.  Twenty years ago (or so), it took a long time to calculate the sine of an angle.  So if you needed to make a lot of calculations with sines in them, what you did was: calculate the sines of each of the 360 degrees (or more if you needed a better precision) and store the results in an array.  If you then needed the sine of n, all you needed to do is look up the value of the n'th entry in the array --which was a lot faster and therefore efficient than calculating the value.\n\nOf course, this only helped if you needed to calculate a sine more than 360 times, otherwise you wouldn't win back the overhead of pre-calculating all those sines.\n\nHTH.\n\nPS: a conclusion of what I wrote should be that using arrays with[in] loops does NOT *always* improve efficiency.