Trig Functions
What is the ratio for sin?
Opposite over Hypotenuse
Find theta with the given information: Adjacent = 12 Hypotenuse = 13
(round to the nearest tenth)
22.6 degrees
Find the missing Side: Theta = 37, Adjacent = 11, Hypotenuse = x
(round to the nearest tenth)
13.8 units
In triangle ABC, angle A is a right triangle. If tan of B = 8/9. Find cos B.
(round to the nearest tenth)
cos b = 9/12
What is the ratio for cosine?
Adjacent over Hypotenuse
Find theta: Adjacent =13 Opposite = 4
(round to the nearest tenth)
17.1 degrees
Find the missing side:
Theta = 32 , Adjacent = 13, Opposite = x
(round to the nearest tenth)
8.1 units
In triangle ABC, angle A is a right angle. If Cos b = 12/20, find sin b.
Simplify your fraction.
sin b = 4/5.
What is the ratio of tangent?
opposite over adjacent
Find Theta: Opposite = 11.9 Adjacent = 10
(round to the nearest tenth)
50 degrees
Find the missing side: Adjacent =x, Theta = 60, Hypotenuse = 11
(round to the nearest tenth)
5.5 units
What do you use to solve for missing angles in right triangles?
inverse trigonometric ratios
Find Theta: Hypotenuse = 9 Adjacent = 6
(round to the nearest tenth)
48.2 degrees
Find the missing side: Theta = 50, Adjacent = 5, Opposite = x
(round to the nearest tenth)
6 units
What helps helps us remember the three trigonometric ratios?
SohCahToa
Find Theta: Opposite = 3 Adjacent = 3
45 degrees
Find the missing side: Opposite = 4 ,Adjacent = x, Theta = 41
(round to the nearest tenth)
4.6 units