Pythagorean Theorem
Geometric Mean
Special Right Triangles
Trig
Laws of sines and cosines
100
When using Pythagoras Theorem, the Hypotenuse is labeled with what letter?
c
100
Find x: 
x = 16
100
In a 45, 45, 90 right triangle, what operation must you do to go from the hypotenuse to the leg?
divide by sqrt2
100
Find Angle A.
angle A= 43.34
100
What information would you have to know in order to be able to solve for side a using Law of Cosines?
side c, angle A, side b
200
When using Pythagoras Theorem, what is the formula?
a^2+b^2=c^2
200
Find CD:
CD ~ 5.2
200
The length of the shorter leg of a 30°-60°-90° triangle is 3. What is the length of the hypotenuse?
6
200
Find side b.
b=3.7
200
Using laws of cosines, solve for b:
60.5
300
Calculate the length of the hypotenuse:
26
300
Find CD:
CD ~ 9.2
300
The length of the longer leg of a 30°-60°-90° triangle
sqrt(108)
is. What is the length of the shorter leg?
6
300
Find x. Round to the nearest hundredths.
x=7.73
300
If B = 140, C = 450, and b = 5.2, find c to the nearest tenth using the Law of Sines.
15.2 units
400
Calculate x:
19.24
400
Find x (write as a decimal):
x = 17.3
400
The length of one leg of a 45°-45°-90° triangle is
sqrt(3
. What is the length of the hypotenuse?
sqrt 6
400
What does the word trigonometry mean in Greek?
Trigonometry comes from the Greek words for triangle and measure
400
Using laws of cosines, find side a:
20.87
500
Calculate the length of the Hypotenuse:
7.62
500
Find CA:
CA = 6
500
The long leg of a 30-60-90 triangle is 10. What are the lengths of the short leg and the hypotenuse?
Short leg:
(10 sqrt3)/3
Hypotenuse:
(20sqrt3)/3
500
To solve for K: SOHCAHTOA, Law of Sines, or Law of Cosines? 
cosine
500
If A = 500, b = 10, and a = 14, find C to the nearest degree using the Law of Sines.
97 deg