Does anyone know what the hell a quadrant angle is and how it looks like?!?
2007-06-23 20:24:53 · 7 answers · asked by Smith 1 in Science & Mathematics ➔ Mathematics
ps...i'm in highschool
2007-06-23 20:37:39 · update #1
so... i can't drop the class, unfortunately.
2007-06-23 20:46:16 · update #2
A four-sided shape is rarely a Square. Each corner has its own angle. Each corner is also called a Quadrant The sum of all four is 360 degrees. Basic trigonometry may not be grasped unless Geometry is mastered.
2007-06-23 20:38:14 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Grasp a cross (on Jesus Christ was crucified) is standing right in front of you, which is made up of at least a vertical and a horizontal elements!
In trigonometry it is mere vertical and horizontal lines which intersects at a point!
You may create a vertical and a horizontal lines on a computer screen (if you have a computer)!
Said two lines creates four quadrants (90 degree zones) around said intersecting origin!
A "right top corner quadrant" of it is very important to learn 'x' and 'y' positive co-ordinates! This is easy quadrant to relate x and y as it involves plus co-ordinates alone! It is usually known as 1st quadrant!
Other three quadrants involves minus co-ordinates which is not that easy to relate mentally!
However 'any line drawn in first quadrant' starting from origin has a "+ x (horizontal)" and "a + y (vertical)" co-ordinates!
Now I have explained a line drawn in first quadrant (which can be regarded as hypotenuse of a right angle triangle) and angle it makes in between horizontal line and hypotenuse is angle theta, (which you hear in trigonometry). Together with hypotenuse, x, y and angle theta a right angle triangle is fixed!
A concerned study of relations/ratios between sides and angles of said right triangle is Trigonometry!
You have rightly stated it as hell (to a beginner) but it is truly a useful manner of relating numbers to needs!
Regards!
2007-06-24 04:27:46 · answer #2 · answered by kkr 3 · 0⤊ 0⤋
a quadrant is 1/4th of a circle
so a quadrant angle = 90 degrees = pi/2 radians
2007-06-24 03:31:02 · answer #3 · answered by hipguyrockin 2 · 1⤊ 0⤋
Draw a cross with vertical line AB and horizontal line CD. Interect at O.
Now have 4 quadrants.
Difficult to draw.
SIN |All
---------
TAn|Cos
Shows that in 1st quadrant sin,cos and tan are +VE
2007-06-28 03:25:43 · answer #4 · answered by Como 7 · 0⤊ 0⤋
If you are in college, drop the class and take statistics instead! Way easier and fullfils the same breadth requirements!
2007-06-24 03:33:44 · answer #5 · answered by jvnheavner 2 · 0⤊ 0⤋
it is a quarter of a circle which is 90 deg.
2007-06-24 03:39:04 · answer #6 · answered by Amir 1 · 0⤊ 0⤋
must be 90 degrees
2007-06-24 03:34:23 · answer #7 · answered by thunderstorm 2 · 0⤊ 0⤋