Vocabulary
Using Trig Ratios
Special Right Triangles
Angles
Wild Card
100
The trig function that is defined as opposite over hypotenuse.
What is SINE?
100
Sin A =
24/25
100
*** Triple Points ***
In a 45-45-90 triangle, if the length of a leg is 5, this is the length of the hypotenuse.
What is
5sqrt(2)
100
What quadrant would the terminal side be in
195o
Quadrant III
100
Convert to degrees
pi/5
What is 36o
200
This trig function is defined as opposite over adjacent.
What is TANGENT?
200
Cos A =
7/25
200
In a 30-60-90 triangle. If the hypotenuse is 40 then the short leg of the triangle is this value.
What is 20?
200
What quadrant would the terminal side of the angle be in
(5pi)/3
Quadrant IV
200
Convert to radians.
150o
What is
(5pi)/6
300
This trig function is defined as hypotenuse over adjacent.
What is secant?
300
What is the value of x?
x=43.8
300
*** Double Points ***
Find the value of x.
x = 6
300
State the reference angle: 220o
Quadrant I
300
If Sin A = 3/5 what is Cos A?
4/5
400
These two angles have the same initial and terminal sides.
What are coterminal angles?
400
What is the length of side a?
a = 1.71
400
Find the value of y.
y = sqrt(3)
400
Name the reference angle for 135o
45o
400
*** Double Points ***
A tree casts a shadow that is 8 ft long. If the angle of elevation from the group to the top of the tree is 63o, how tall is the tree?
The tree is 15.7 ft tall
500
This is the name of an angle whose terminal side lands on either the x or y axis.
What is a quadrantal angle?
500
What is the value of x?
x=49.2
500
Find the values of x and y.
x and y =
(5sqrt(2))/2
500
Find a negative angle that is coterminal with 110o
-250o
500
A safety ramp must be installed at an angle of 15o with the ground. If the height of the ramp is 4 ft, how long is the ramp?
The ramp is 15.5 ft long.