Sine 30 degrees are evened by the one second or zero whole five tenth.
sin 30° = 1/2 or sin 30° = 0,5
In the radian measure
sine of corners 30 degrees correspond a
sine π/6:
sin 30° = sin π/6
Oddly enough, but justly and reverse equality, which asserts that
sine π/6 (sin pi/6) equal a
sine 30 degrees:
sin π/6 = sin 30°
A
sine pi / 6 is evened similarly one second or zero whole five tenth.
sin π/6 = 1/2 or sin π/6 = 0,5
It was
for blondes. For brunettes and bald academicians of mathematical sciences it is possible to write down all of it in a general view, let untangle:
sin 30° = sin π/6 = 1/2 = 0,5
For complete happiness here obviously the picture of
sine 30 degrees is not enough. Surprise! And she:

Sine is 30 degrees 
I hope, the first part of task I decided and I succeeded to explain to the blondes,
what the sine of thirty degrees is equal to. It is now needed to decide the second half of task, with which all academy of mathematical sciences, together taken, is unable to manage even. It is needed in the Internet
to find blondes which search a sine 30 degrees. Will I try to be armed with logic of blondes and I will transfer below searching queries which blondes can enter in the searching systems at the search of answer for a question:
what is a sine equal to 30 degrees? And so, searching queries, dilute my comments, in order the searching systems did not separate my creation from blondes.
Sine  it mathematicians collate the knowledge with the Internet.
Sine, cosine  the authority of mathematicians appeared, to check, as mathematicians collated the knowledge.
A sine of corner  is botanists spectacled, future of Bills Gatesis, comb the clever turnips and try to remember the school course of mathematics.
Sine of degrees  smart schoolboys pelt the question on the way, what quicker cut with this nasty thing and continue a game.
Table of sines, tangents  conscientious schoolboys and respectable brunettes scraped away all cognitions in trigonometry and try to collate them with the Internet.
A value of sine  is mathematicians, after the long wandering on sites with blondes, at last understood how it is better to formulate a searching query.
Values of cosines and sines  mathematicians remembered suddenly, that by a not sine single trigonometry lives by.
Is a sine what equal to?  and the first signs of presence of blondes in the Internet with their appealing spontaneity of intercourse, even with a computer.
Sines and cosines of corners. Table of values of sines. The sine of corner is equal  it mothers try to check up, as their children did lessons.
How to find a sine?  it is already the typical question of the confused blonde.
Sine of acute angle. Sine and cosine 30  are mothers hardly, but already begin to understand that requires to be found in a task.
A sine of number  is poor mothers, they are even unaware that corners can be measured by radians.
A sine is alpha  mothers remembered, by what letter once at school they designated corners.
Calculator of sines  for help clever dads come helpless mothers.
How to find the sine of corner?  clever dads found the calculator of sine, it is now needed to know, how to use this thing.
Geometry is a sine, cosine. To get the table of sines. Values of sines of corners  it children unstucked from the virtual games and try to prove to the clever dads, that dads not correctly press on the buttons of calculator, because the sine of corner can not equal three jars of beer.
Calculations of sine  mathematicianstheorists try to steal job of mathematicians of the applied sciences performances.
To calculate a sine  it the mathematicians of the applied sciences steal job of the colleagues performances.
Sine of endlessness  it already physicists try to check up the calculations of mathematicians.
Being of sine  blondes try to know, where sines live.
Trigonometric sine  all discovered in surprise, that sines were not only in mathematics.
How many sine 30  is a zero whole five tenth.
How many sin 30 is equal  so much, zero five.
How many will a sine be 30?  it is a question, certainly, interesting..
ышт 30  it is possible so, it is only better to be commuted into English language.
A table is sin alpha of 30 degrees  not quite table, but a sine and 30 degrees are exactly.
Numbers from which sines natural are  mathematicians, a blonde put question. Are there variants of answers? Honour of fulldress uniform is put on kitty.
Who can explain why sine 30 degrees 1/2 is equal?  well, infant prodigies, blonde put question. Who will dare answer? A prize fund of competition is three dollars, I throw down on the mobile telephone number indicated by a winner or on the purse of WebMoney.