2D Trigonometry
3D Trigonometry
Unit Circle
Bearings
Trigonometry Formulas / Rules
100

The Longest side on a 2D Triangle.

What is the Hypotenuse?

100

The formula to find the Length of a side on a 3D Triangle in Trigonometry.

What is A+ B2 + C2 = D?

100

This is the Y Coordinate of the Unit Circle

What is Sine?

100

The direction that the Bearing starts at.

What is North?

100

This is the name for this formula: a/SinA = b/SinB = c/SinC

What is The Law of Sine?

200

The formula to find the Length of a side on a Right 2D Triangle.

What is A2 + B2 = C?

200

The name of this formula: A2 + B2 + C2 = D2

What is Pythagorus' / Pythagoreum Theorem?

200

The Name for the X Coordinate on the Unit Circle.

What is Cosine?

200

This is the answer if the bearing was measured at 40 degrees.

What is 040?

200

The way to find the degree of a triangle using Trig Functions. AKA: CosX = 3/5

What is the Inverse?

300

The side that is touching the angle on a Triangle.

What is The Adjacent?

300

The name of this formula:

A2 = B2 + C2 - 2bc CosA

What is The Law of Cosine?

300

All Quadrants in the Unit Circle are equal to this many degrees.

What is 90 degrees?

300

This is the answer to this word problem:

If Derrick moves 73 degrees SE, what is the Bearing?

What is 073?

300

The way to remember which Trig Function uses Opposite, Hypotenuse, or Adjacent.

What is SOHCAHTOA?

400

The answer to this problem:

The Hypotenuse of a triangle measures 5 meters. Another side measures 3 meters. The last side measures x meters. Find the value of x.

What is 4?

400

Daily Double!!!!!

The answer to this problem:

A rectangular room has a length of 8 m, width of 6 m, and height of 3 m. Calculate the angle of elevation from a bottom corner on the floor to the top corner on the opposite side of the room (diagonal across the room). 

What is 16.7?

400

This point is in the 1st quadrant, and is located at 45 degrees.

What is (√2 / 2 , √2 / 2)?

400

The answer to this problem:

The Bearing is located at 067 degrees. Then it moves 14 degrees clockwise. Where is it now?

What is 081?

400

This is the formula to find the Area of a Triangle in Trigonometry.

What is A = 1/2 bc SinA?

500

The answer to this problem:

You are given Triangle ABC. Angle C measures 60 degrees. BC measures 4 meters. AC measures 6 meters. AB measures x meters. Use the Cosine rule to find the value of x. Answer in simplest form.

What is 2 √7 meters?


500

The answer to this problem: 

(Unfortunately, I'm not allowed to upload images because I'm not a member, so I'm gonna word it the best I can and try to draw the picture :(  ).

There is a line from A to B that is 25 meters Long. A point C is on the line. From C, a straight vertical line goes up to point D. This vertical line is the height. Lines connect A to D and B to D, making a triangle.  29 degrees at point A towards D. 43 degrees between A & C, and 58 degrees at point B. Find the height.


What is 26.3 meters?

500

This Pi is located at 270 degrees on the Unit Circle.

What is 3π / 2 ?

500

The answer to this problem:

The Bearing of B from A is 050 degrees. Find the Bearing of A from B.

What is 230 degrees?

500

Daily Double!!!!!

These are all 3 of the Bearing rules.

What is measured from the north, the bearing must be in 3 digits, and the bearings must be measured clockwise?

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