The trig function that is defined as opposite over hypotenuse.
What is SINE?
Name the trig functions you could use when you are given the adjacent side and hypotenuse
What are COSINE
The side opposite the right angle of a right triangle.
What is the hypotenuse?
label the triangle

L, L, L√2
label the triangle

L, L√3, 2L.
Is it a triangle
9, 15, 19
Is so, what kind?
obtuse
This trig function is defined as opposite over adjacent.
What is TANGENT?
Solve for x

10 ⎷3
What is the only type of triangle you can use trig ratios with?
What is a right triangle?
If one leg equals 3 cm in a 45, 45, 90 triangle, what does the other leg equal?
What is 3 cm.
What is the sum of the 2 acute angles of a right triangle?
90 degrees
Is it a triangle?
6, 12, 19
If so, what kind?
Not a triangle
This trig function is defined as adjacent over hypotenuse.
What is COSINE?
What is y?

Y = 5
The angle opposite the hypotenuse.
What is a right angle?
If one leg of a 45, 45, 90 triangle equals 10 miles, what does the hypotenuse equal?
10√2 miles.
If the short leg length is 10 m, what does its other leg equal to?
10√3 m
If the perimeter of a square is 68 feet, find the approximate length of its diagonal. Round to the nearest whole number.
24 feet
This is the mnemonic device (or trick) used to remember all 3 trig ratios.
What is SOH CAH TOA?
What trig ratio do you need to use to solve for BC? 
Cosine
The formula needed when a side length is missing from a right triangle.
What is the Pythagorean Theorem?
The 45 degree angle has a side length of 5 inches. What is the side length of the hypotenuse?
5√2
If the side length of the hypotenuse is 80 yards in a 30, 60, 90 triangle, what are the lengths of the legs?
short leg = 40 yards
long leg = 40√3 yards.
What are you solving for with these inverse functions?



an angle measure
Name the 3 trig functions we have learned
What is SINE, COSINE, TANGENT
Set up the ratio to find the measure of angle B.
cosB=5/9
The 2 acute angles in a right triangle total the following degree _________
What is 90?
Solve for x & y

x=13
y=13 ⎷2
Solve for x & y
x=18
y=9 ⎷3
What is Mrs. McFarland's Favorite Color?
Pink