name the goemetry of the sum of three angles of a triangle is less than 180?
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hyperbolic\n\nare u not doing your own homework?\n\n\n\n\ntriangle drawn on a sphere always have total angles of more than 180 and they approach 180 as the triangle gets smaller. This type of geometry is called Elliptic Geometry.\n\nAnother type of geometry where all angles add up to less than 180, with 180 being the limiting case, is called hyperbolic geometry.\n\nThe geometry we r familiar with, geomatry of the flat is called Euclidean geometry.
808242
Yes. These are intriguing geometry problems. What is YOUR question? Be specific. Post ONE question and be specific about where you are stuck. Right now, this just looks like you want someone to DO your homework for you. But you wouldn't cheat on your homework like that, would you?\n\nHere's a hint -- supplemental angles add up to 180\n\nFor example, if one angle is 60 degrees, its supplement is 120
905611
If u r saying that u have three sides of a triangle as a,b,c\nAnd u want to determine angle b/w them, u can use the formula\ncosA=(b^2+c^2-a^2)/2bc where A is the angle formed by the sides b and c.similarly if B is the angle formed by a and c, it can be calculated as\ncosB=(a^2+c^2-b^2)/2ac\nonce u have calculated A and B, subtract their sum from 180, u will get third angle.\nRemember u will have to use inverse table for cos to find A and B
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Plot 3 points, connect them with lines. you get a triangle\n\nList most acute (sharp) angle 1st, most obtuse (blunt) angle last, and remaining one in the middle.\n\nIt looks like C will be the most obtuse
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Two angles whose sum is 90 degrees.
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If θ is a reflex angle then \n\n180° < θ < 360°\n\nAngles are categorised as follows\n\n0° < θ < 90° ------- acute angle\n90° = θ  ------------ right angle\n90° < θ < 180° --- obtuse angle\n180° = θ ----------- straight angle\n180° < θ < 360° -- reflex angle\n360° = θ ----------- revolution
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Can't u prove it ?\nuse simple geometrical angle laws.\n\nif we have a triangle : \nupside-- the inclined plane\ndownside--- the horizontal\nright side--- the gravitational force (vertical)\n\nDRAW IT........ as u know \n\nand then draw the perpendicual component on the plane     \n\nuse this: sum of the two angles inside the triangle    =180-90=90\n\nsum of angles at the gravitional point= 180-90=90 also\n\nu will prove the equality
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A pair of angles are supplementary if their respective measures sum to 180 degrees.\n\nYou would subtract an angle less than 180 to get it's supplement.
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The AREA of an isosceles triangle is found by taking 1/2 the sum of the long and short parallel sides, times the height. One way to compare this with the parallelogram is to take two copies, turn one 180 degrees and glue them along the equal (nonparallel) edges. \nYou now have a larger parallelogram - with one side composed of the sum of the original short and long parallel edges. Use the usual formula for the area of this parallelogram, then divide by 2 (since it is composed of two equal copies).
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1) a triangle and an ext angle by given.\n2) 1+2+3=180 by the sum of interiors of a triangle\n3) 3+4= 180 by linear pair postulate (or theorem, i forgot)\n4) 1+2+3=4+3 by Transitive property\n5) 1+2=4 by Subtraction property.
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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
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Just think....\n\nA triangle (3 sides) always totals 180 degrees\nA quadrilateral (4 sides) always totals 360 degrees\nA pentagon (5) will total 540 degrees\n\nSo, the angles, A, will always equal 180 degrees per side, for each side (N) after the first 2.\n\nIn other words,   A = 180 * (N-2)\n\nif A is 32040, then 32040 = 180 * (N-2)\n\nN - 2 = 178\n\nN = 180
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the correct option is e \n the value of i radian is 180/pi = 57.3248 ( if pi is 3.14)
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(degree/180)*pi=radians
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An Angle sum of any polygon is (n-2)*180.\n\nOctagon has 8 sides - so it is (8-2)*180 = 1080 degrees\n\nThe proof of this is simple. Any polygon can be divided into (n-2) non overlapping triangles which share the same end points as the polygon (try it on paper its easier to understand).\nSince we already know that sum of angles of a triangle is 180 degrees. We get angle sum of any polygon as (n-2) * 180 degrees.\n\nFor example, a rectangle can be divided into two triangles (by drawing a line along the diagonal) - add up the angles of each triangle - 180 degrees each. Sum both these to get the angle sum of the rectangle. Which is 180 + 180 = 360.
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You're looking for the angle that has a sine of 1/2.\nDrawing a triangle representing this is very helpful.  You will see that it is a 30-60-90 triangle.  \nIf you can find it in degrees, then you can convert it to radians by multiplying it by pi/180.\nsine(30) = 1/2\n30 degrees = 30(pi/180) = pi/6
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A triangle in which all 3 sides are of different lenghts, with different angles.