This trigonometry ratio relates hypotenuse and adjacent
What is cosine?
When using Trigonometry, the side length directly across from the angle is called:
Opposite
The function used to solve for the missing angle when you know the adjacent side length and the opposite side length
tan-1
inverse tangent
(arctan)
Triangles that trig functions apply to:
Right triangles
Find side length AB
AB = 8.40
This trig ratio relates opposite and adjacent
What is tangent
Using trigonometry, find the value for x:
Cos 37 = adj / hyp
Cos 37 = x / 11
x = 8.789
What angle does the rocket have to be launched at to reach the rocket base 300 km above Earth?
tan θ=300/90
θ=tan^-1(300/90)
θ=73^o
Using trigonometry, calculate the value for x:
Sin 28 = opp / hyp
Sin 28 = x / 50
x = 23.450m
How long is y?
y = 8.67
The longest side of a triangle
What is the hypotenuse
Using trigonometry, find the value for x:
Tan 54 = opp / adj
Tan 54 = x / 5
x = 6.880m
35.10o
Find BOTH missing angles and the missing side.
Angle Z is the right angle.
Missing side = 29 cm
Angle X = 44 degrees
Angle Y = 46 degrees
How long is the opposite side of a right angled triangle if the reference angle is 50 degrees and the hypotenuse is 14cm?
10.72cm