Trig Functions
Trig Functions
Trig Ratios
Trig Vocabulary
Pythagorean Theorem
Right Triangles
100
what is opposite/hypotenuse?
SINE
100
What are the three trig ratios called?
Sin, Cos & Tan
OR: sine, cosine & tangent
100
The side opposite the right angle of a right triangle.
What is the hypotenuse?
100
When using Pythagoras' Theorem, the Hypotenuse is labeled with what letter?
C
100
When using Trigonometry, the side length across from the reference angle is called what?
Opposite
200
what is opposite/adjacent?
TANGENT
200
sin(θ)=
Opposite/Hypoteνse
200
What is the only type of triangle you can use trig ratios with?
What is a right triangle?
200
What is the formula for Pythagoras' theorem?
c2=a2+b2
a2+b2=c2
200
How do we identify the hypotenuse of a right-angled triangle?
It is the longest side, and is always opposite the right angle.
300
what is adjacent/hypotenuse?
COSINE
300
Find the cosine of 79 degrees to the nearest thousandth
0.191
300
The angle opposite the hypotenuse.
What is a right angle?
300
Calculate the length of the hypotenuse:
26
300
What is 'theta' often used to represent when it comes to trigonometry?
An unknown angle
400
What is SOHCAHTOA used for?
To find the missing sides or components of a right triangle
400
What does the acronym SOHCAHTOA stand for?
(Write out each word in order.)
Sine
Opposite
Hypotenuse
Cosine
Adjacent
Hypotenuse
Tangent
Opposite
400
The formula needed when a side length is missing from a right triangle.
What is the Pythagorean Theorem?
400
Calculate x (to the hundredths place):
23.24
400
Consider the triangle below, what is the side length of the hypotenuse.
11
500
Sohcahtoa only applies to which triangles?
right triangles
500
Set up the regular trigonometric ratio you may use with the given information?
tan(θ)=68
500
The 2 acute angles in a right triangle total the following degree _________
What is 90?
500
What is the length of bd?
12
500
What is the sum of the interior angles of a triangle?
180 degrees