Unit Circle Trig
cos(30)
What is sqrt(3)/2?
The x-coordinate is negative and the y-coordinate is positive.
What is Quadrant II?
Between 0 and 360, find all values for sin-1(0)
What are 0, 180, (360)?
90 degrees in radians.
What is pi/2?
If a tree casts a shadow of 10 meters and the angle of elevation to the top of the tree is 30∘, this is the height of the tree.
What is 5.77 meters?
sin(pi/2)
What is 1?
The measure of the angles is between 0 and 90 degrees.
What is Quadrant I?
Between 0 and 360, all values for cos-1(-1/2)
What are 120 and 240?
330 degrees in radians.
What is 11*pi/6?
If a building is 50 meters tall and the angle of depression to a point on the ground is 45∘, this is the distance from that point to the base of the building.
What is 50 meters?
tan(pi/3)
What is sqrt(3)?
9/5*pi
Between 0 and 360, all values for tan-1(-sqrt(3)/3).
What are 150 and 330?
278∘ in radians.
What is 139/30*pi?
A ladder leans against a wall forming a 67∘ angle with the ground. If the base of the ladder is 3 meters from the wall, this is how high up the wall the ladder reaches.
What is 7.07 meters?
What is 2?
cos<0,cot>0
What is Quadrant III?
The value between 90 and 180 where sin(theta)=.69466
What is 136 degrees?
π/12 radians in degrees.
What is 15 degrees?
From a point 100 meters away from a building, the angle of elevation to the top of the building is 30∘. This is how far away from my eye the top of the building is.
What is 115.47 meters?
cot(270)
What is undefined?
csc>0, sec<0
What is Quadrant II?
The value between 270 and 360 where cos(theta)=.970296.
What is 346 degrees?
5π/18 radians in degrees.
What is 50 degrees?
A kite has 20 meters of string when the angle of elevation is 39 degrees. What is the height of the kite?
What is 12.59 meters?