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What quadrant is 28pi divided by 3 in?
9.3333
Why is cosine negative in the third quadrant?
On a Unit Circle, the cosine is the x coordinate of the point on the circle represented by an angle. Angles greater than 90° (pi/2 radians) and less than 270° (3*pi/2 radians) are to the left of the y-axis, so x is negative. Quadrant I is the upper right quadrant (x positive, y positive) 0° < ɵ < 90° Quadrant II is the upper left quadrant (x negative, y positive) 90° < ɵ < 180° Quadrant III is the lower left quadrant (x negative, y negative) 180° < ɵ < 270° Quadrant IV is the lower right quadrant (x positive, y negative) 270° < ɵ < 360°
What is the area of a quadrant 12 in. using 3.14 for pi?
Assuming that 12 in refers to the radius, then the area is 113.04 square inches.
What is the exact value of the expression cos 7pi over 12 cos pi over 6 -sin 7pi over 12 sin pi over 6?
cos(a)cos(b)-sin(a)sin(b)=cos(a+b) a=7pi/12 and b=pi/6 a+b = 7pi/12 + pi/6 = 7pi/12 + 2pi/12 = 9pi/12 We want to find cos(9pi/12) cos(9pi/12) = cos(3pi/4) cos(3pi/4)= cos(pi-pi/4) cos(pi)cos(pi/4)-sin(pi)sin(pi/4) cos(pi)=-1 sin(pi)=0 cos(pi/4) = √2/2 sin(pi/4) =√2/2 cos(pi)cos(pi/4)-sin(pi)sin(pi/4) = - cos(pi/4) = -√2/2
What is 2 pi over 2?
2 pi / 2 = pi.
What quadrant would pi over 5 be in?
Pi / 5 would be in Quadrant I.
What quadrant would 7 pi over 5 be in?
7*pi/5 = 1.4*pi pi < 1.4*pi < 1.5*pi and so the angle is in the third quadrant.
How you find the perimeter of quadrant?
If you the radius of the circle is r then the perimeter of a quadrant = r*(2 + pi/2).
How do you find area of a quadrant circle?
If the radius of the circle is r, then the area of the quadrant is 0.25*pi*r^2
Is pi a quadrant?
No, it is not.
Is pi quadrant?
No
Formula to find circumference of quadrant?
Circumference of a circle = 2 * pi * r pi = 3.1415926535897932384626433832795 r= radius of circle Hence Circumference of a Quadrant = 2 * pi * r / 4 = pi * r / 2 = 0.5 * pi * r For more accurate value of pi, please refer: http://en.wikipedia.org/wiki/Pi
What is the quadrant of 8.3?
8.3 Radians? is in the second quadrant. 8.3/pi*180 is about 115. 115 is in the second quadrant.
What is formula of perimeter of quadrant?
In a circle of radius, r, perimeter of quadrant = pi*r/2 + 2r = r*(pi/2 + 2)
How do you find the perimeter of quadrant?
If you the radius of the circle is r then the perimeter of a quadrant = r*(2 + pi/2).
A piece of string 25cm long goes exactly once around the edge of a plate in the form of a quadrant Calculate the area of the quadrant?
Presumably the plate is completely flat. The circumference will be 4*25 = 100 cm. First find the radius of the plate by rearranging the formula: 2*pi*radius = 100cm radius = 100/2*pi = 15.91549431 cm. Now use the formula pi*radius2 to find the area of the plate, and then divide your answer by 4 to give you the area of the quadrant. pi*15.915494312 = 795.7747155/4 = 198.9436789cm2. Therefore, the area of the quadrant is 199 cm2 correct to three significant figures.
How you find the perimeter of a quadrant?
2r + (2pi r)/4 or 2r x (1 + pi/4) eg radius 3 units, circumference 6 pi units, arc of quadrant 1.5 pi units, plus 2 x radius ie 6 so P = (1.5 pi + 6) units (approx 10.7)
