Labeling sides & Ratios
Trig. Ratios
Reciprocals
Missing Angle
Missing Sides
100
Label the sides of the right triangle. (O,A,H)
Purple = Hypotenuse, Blue = Opposite, Pink = Adjacent
100
The trig function that is defined as opposite over hypotenuse.
What is SINE?
100
The reciprocal of tangent.
What is COTANGENT?
100
When solving for a missing angle, you use:
A. The trig function (sin)
B. The inverse of the trig function (sin-1)
B
100
Is there enough information to solve for side b? If so, solve. If not, what additional information will you need.
We need either side a or c.
200
Define the three trig ratios.
sin=O/H
cos=A/H
tan=O/A
200
This trig function is defined as opposite over adjacent.
What is TANGENT?
200
The reciprical of cosine.
What is SECANT?
200
Find X
tan-1(284/123)=x
200
Solve for the Opposite side.
sin(57)x24
300
Find the sin and cos of angle B
Sin(B) = 4/5
Cos(B) = 3/5
300
This trig function is defined as adjacent over hypotenuse.
What is COSINE?
300
The reciprocal of sine?
What is COSECANT?
300
Find the missing angle
sin-1(8/17)
cos-1(15/17)
tan-1(8/15)
300
Find d and e.
d = 58/cos(20)
e = 11/tan(70)
400
Find the cos(A) and the sin(B)
24/25
400
Use this trig function when you do not have the hypotenuse but you have the other two sides.
What is TANGENT?
400
Find the csc of angle 𝞪
17/8
400
Find both missing angles using sin().
A= sin-1(10.25/12.85)
B= sin-1(7.75/12.85)
400
Find sides x and y.
x = 7sin(46)
y = 7cos(46)