Is a radian based on any physical standard?
610173
Radians are based on pi.  A radian is equivalent to 1/(2pi).  Because it is just a ratio of another constant, it isn't based on a physical standard unlike feet, meters, etc.\n\nIt's just like degrees.  A degree is 1/360th of a complete circle, but nobody needs to define 360 with a physical object.  We all know what 360 is.  Similarly we know what 2pi is (it's the circumference of a unit circle).
700071
Yes. If you multiply it out it is the same. The square kills off that minus sign because any real number squared is positive.\n\n\nz
1032932
mass, length, time, current, luminous intensity and solid angle steradians r fundamental. Rest all can b expressed by these alone.\n\nDarren G - missed d last 1.\n\nSo ur ans is option D
1011511
depends:  \ntry \n747.60,\n430,\n362.17,\n569.89,\n997.4,\n997.5\nor 743.58
889683
There is, it is called Standarad Deviation, if you have a decent Scientific Calculator it shouyld show how to use it.
777467
A very basic way of doing this is by holding your outstretched hand at arms length in front of you - hiding the object to be measured (move your hand the appropriate number of times to cover the object). Each hand movement should cover approximately 10°. Then there is 57.3° to a radian. From there is is a simple deduction.
745809
1 revolution  =2*3.1416 (pi) radian.\n\nSo, a revolution = pi radias i.e; 3.1416 radian
545911
2pi rad=360deg\n==> x rad = (360*x)/2pi deg\n\nConversely,\n360 deg = 2pi rad\n==> x deg = (2pi*x)/360 rad
257038
Cylinder: (pi)*(radius^2)*(height)\nPrism: (area of the base)*(height)
268949
It's just like the decimal system, only based on the number 2 instead of the number 10..........\n\n1  10  100  1000  10000  100000  1000000  etc... - Decimal\n\n1  2  4  8  16  32  64  128  256  512  1024  etc.. - Binary
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.
419817
deviation= (refractive index -1)*angle of prism\n\nif prism angle is small...\nand\ndependence of rf with wavelength is given by cauchy's formula\n\nrf= A/wavelength....  A is constant\n\nso dependence (deviation) proportional to [(1/wavelength) -1)]
682546
Mean = 2.59\nMedian = 3.1\n\nAnswer: 3.1 - 2.59 = 0.51
618088
It's spelled "pi" and it's used in trigonometry because it's how you measure a circle in radians. Radians is a better way to measure angles - pi is equivalent to 180 degrees, and 2pi is equivalent to 360 degrees.
535427
To do this, you have to do sin^-1 * decimal. Because Yahoo Answers only displays up to .0145, I'll do sin^-1 * .0145, which would be about 0.8308
253760
well u need it in mensuration when u need 2 find the area of a circle and stuff. it's a very imp constant whose value i 22/7 or 3.14\nalso, 180 degrees = pi radian which u need in physics and calculas
620468
Theta usually designates an angle. Radians are one means of measuring angles. Your question is equivalent to asking how to convert from inches to length.