Which Ratio?
Know Thy Function
Missing Measures
Random Recall
Applications
100
Use it when you know the length of the hypotenuse and the adjacent leg.
What is Cosine?
100

The tangent of 45 degrees.

What is 1?

100

...and the other reference angle in my triangle measures 13.4 degrees.

What is 76.6 degrees?

100

The Angle of Depression is congruent to this.

What is Angle of Elevation?

100
The maximum height that a 20 foot ladder can reach safely if we follow the suggestion that the ladder should not make an angle grater that 75 degrees with the ground.
What is 19.32 ft?
200
Use it when you know the hypotenuse and the opposite leg.
What is Sine?
200

How to find a side length when no reference angle is given.

What is Pythagorean Theorem or a2+b2=c2?

200

The whole number angle measure and function that gave me a ratio of 0.4695

What is Sine28 or Cosine62?

200

5,12,13 is an example of this.

What is a Pythagorean Triple?

200
The distance above sea level after a plane ascends from 1 mile at a 3 degree angle for 60 ground miles.
What is 4.1 mi?
300

Use it when you have the legs and need a reference angle.

What is arctangent?

300

The same ratio as cosine of 62 degrees.

What is sine of 28 degrees?

300

How I can use the sine of 32 and the cosine of 32 to find the tangent of 32.

What is divide sin32 by cos32?

300

This is the whole number angle measure and function I used to get a ratio of 0.5

What is Sine of 30 or Cosine of 60?

300
The angle of elevation of the sun when a 7.6 meter flagpole casts an 18.2 meter shadow, rounded to the nearest degree.
What is 22.7 m?
400

Use it when you want to know the opposite leg and you know the measure of the angle and other leg.

What is Tangent?

400

The function you use when you want to know the depth of a fish, but you only have the length of fishing line and angle it is being pulled at.

What is sine?

400

The missing side to the nearest 10th when I have a hypotenuse of 27 units and a leg of 16 units.

What is 21.7 units.

400

I have a shortcut to finding side measures when I see triangle lengths that are multiples of these numbers.

What are 3, 4 and 5?

400
The angle of depression of a sledding run 300 yards long with a vertical drop of 27.6 yards.
What is 5.3 degrees?
500

I am using arcsine because I have these parts, and I am looking for this.

What are opposite leg, hypotenuse, and angle.

500

I need it when I don't know the angle, but I have the measures of 2 sides that form it's rays.

What is arccosine?

500

LD to the nearest 10th in Triangle LDN. Other measures of LDN: 

hypotenuse=10, NL=5, angleD=30

What is 8.7 units.

500

The tangent of 90 degrees.

What is undefined?

500
The length of a ski run with a vertical drop of 1100 feet and angle of elevation of 24.4 degrees.
What is 2663 ft?
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