 ### Angles Used to Illustrate Sum and Difference of Two Angles

Angles used to illustrate the sum and difference of two angles and trig identities. ### Circle With 36 degree Angles and Radius 1.5 in.

Circle with 36 degree angles marked. This diagram can be used with the following trig problem: Locate… ### Circle With Center o and Radius r with point P

Circle modeling the earth. O is the center of the earth, r the radius of the earth, and h the height… ### Circle With a Chord of 2 ft. and a Radius of 3 ft.

Circle with chord AB=2 ft. and radius OA = 3 ft.. Triangle AOC is a right triangle. Angle AOC=half angle… ### Unit Circle

Illustration of a unit circle (circle with a radius of 1) superimposed on the coordinate plane. The… ### Unit Circle Labeled At Quadrantal Angles

Illustration of a unit circle (circle with a radius of 1) superimposed on the coordinate plane with… ### Unit Circle Labeled At Special Angles

Illustration of a unit circle (circle with a radius of 1) superimposed on the coordinate plane with… ### Unit Circle Labeled At Special Angles

Illustration of a unit circle (circle with a radius of 1) superimposed on the coordinate plane with… ### Unit Circle Labeled In 30° Increments With Values

Illustration of a unit circle (circle with a radius of 1) superimposed on the coordinate plane with… ### Unit Circle Labeled In 45 ° Increments

Illustration of a unit circle (circle with a radius of 1) superimposed on the coordinate plane with… ### Unit Circle Labeled In 45° Increments With Values

Illustration of a unit circle (circle with a radius of 1) superimposed on the coordinate plane with… ### Unit Circle Labeled In 45° Increments With Values

Illustration of a unit circle (circle with a radius of 1) superimposed on the coordinate plane with… ### Unit Circle Labeled With Quadrantal Angles And Values

Illustration of a unit circle (circle with a radius of 1) superimposed on the coordinate plane. All… ### Unit Circle Labeled With Quadrantal Angles And Values

Illustration of a unit circle (circle with a radius of 1) superimposed on the coordinate plane with… ### Unit Circle Labeled With Quadrantal Angles And Values

Illustration of a unit circle (circle with a radius of 1) superimposed on the coordinate plane with… ### Unit Circle Labeled With Quadrantal Values

Illustration of a unit circle (circle with a radius of 1) superimposed on the coordinate plane. At each… ### Unit Circle Labeled With Quadrantal Values

Illustration of a unit circle (circle with a radius of 1) superimposed on the coordinate plane with… ### Unit Circle Labeled With Special Angles And Values

Illustration of a unit circle (circle with a radius of 1) superimposed on the coordinate plane with… ### Unit Circle Labeled With Special Angles And Values

Illustration of a unit circle (circle with a radius of 1) superimposed on the coordinate plane with… ### Unit Circle Labeled With Special Angles And Values

Illustration of a unit circle (circle with a radius of 1) superimposed on the coordinate plane with… ### Unit Circle Marked At Special Angles

Illustration of a unit circle (circle with a radius of 1) superimposed on the coordinate plane. All… ### Projection of Points in Circular Motion

Illustration of the projection of point P as it moves around a vertical circle of radius 3 in. in a… ### Projection of Points in Circular Motion

Illustration of the projection of point P as it moves around a vertical circle of radius 2 ft. in a… ### Coordinate Axis With Angles, Lines, and Perpendiculars Drawn

Coordinate axis with angle XOP equal to theta, Θ, and angle XOQ=180 - Θ. From any point in the terminal… ### Coordinate Axis With Perpendiculars Drawn To Form Similar Right Triangles From Positive and Negative Theta, Θ

Angle XOP=Θ and angle XOQ=- Θ. From a point in the terminal side of each a perpendicular line is drawn… ### Coordinate Axis With Perpendiculars Drawn To Form Similar Right Triangles

Angle XOP=Θ and angle XOQ=90+Θ. From a point in the terminal side of each a perpendicular line is… ### Cosine Curve y=cos x

Cosine curve plotted from negative pi to 2 pi. Graph of y=cos x. ### Curve in Pavement of Road

Illustration of blueprint used by highway engineers to widen the pavement on the inside of the curve… ### Trigonometry Grid With Domain -π to π And Range -1 to 1

Illustration of a trigonometric grid with a domain from -π to π and a range from -1 to 1. The… ### Trigonometry Grid With Domain -π to π And Range -1 to 1

Illustration of a trigonometric grid with a domain from -π to π and a range from -1 to 1. The… ### Trigonometry Grid With Domain -π to π And Range -1 to 1

Illustration of a trigonometric grid with a domain from -π to π and a range from -1 to 1. The… ### Trigonometry Grid With Domain -π to π And Range -10 to 10

Illustration of a trigonometric grid with a domain from -π to π and a range from -10 to 10. The… ### Trigonometry Grid With Domain -π to π And Range -10 to 10

Illustration of a trigonometric grid with a domain from -π to π and a range from -10 to 10. The… ### Trigonometry Grid With Domain -π to π And Range -10 to 10

Illustration of a trigonometric grid with a domain from -π to π and a range from -10 to 10. The… ### Trigonometry Grid With Domain -π to π And Range -2 to 2

Illustration of a trigonometric grid with a domain from -π to π and a range from -2 to 2. The… ### Trigonometry Grid With Domain -π to π And Range -2 to 2

Illustration of a trigonometric grid with a domain from -π to π and a range from -2 to 2. The… ### Trigonometry Grid With Domain -π to π And Range -2 to 2

Illustration of a trigonometric grid with a domain from -π to π and a range from -2 to 2. The… ### Trigonometry Grid With Domain -π to π And Range -3 to 3

Illustration of a trigonometric grid with a domain from -π to π and a range from -3 to 3. The… ### Trigonometry Grid With Domain -π to π And Range -3 to 3

Illustration of a trigonometric grid with a domain from -π to π and a range from -3 to 3. The… ### Trigonometry Grid With Domain -π to π And Range -3 to 3

Illustration of a trigonometric grid with a domain from -π to π and a range from -3 to 3. The… ### Trigonometry Grid With Domain -π to π And Range -4 to 4

Illustration of a trigonometric grid with a domain from -π to π and a range from -4 to 4. The… ### Trigonometry Grid With Domain -π to π And Range -4 to 4

Illustration of a trigonometric grid with a domain from -π to π and a range from -4 to 4. The… ### Trigonometry Grid With Domain -π to π And Range -4 to 4

Illustration of a trigonometric grid with a domain from -π to π and a range from -4 to 4. The… ### Trigonometry Grid With Domain -π to π And Range -5 to 5

Illustration of a trigonometric grid with a domain from -π to π and a range from -5 to 5. The… ### Trigonometry Grid With Domain -π to π And Range -5 to 5

Illustration of a trigonometric grid with a domain from -π to π and a range from -5 to 5. The… ### Trigonometry Grid With Domain -π to π And Range -5 to 5

Illustration of a trigonometric grid with a domain from -π to π and a range from -5 to 5. The… ### Trigonometry Grid With Domain -π to π And Range -6 to 6

Illustration of a trigonometric grid with a domain from -π to π and a range from -6 to 6. The… ### Trigonometry Grid With Domain -π to π And Range -6 to 6

Illustration of a trigonometric grid with a domain from -π to π and a range from -6 to 6. The… ### Trigonometry Grid With Domain -π to π And Range -6 to 6

Illustration of a trigonometric grid with a domain from -π to π and a range from -6 to 6. The… ### Trigonometry Grid With Domain -π to π And Range -7 to 7

Illustration of a trigonometric grid with a domain from -π to π and a range from -7 to 7. The… ### Trigonometry Grid With Domain -π to π And Range -7 to 7

Illustration of a trigonometric grid with a domain from -π to π and a range from -7 to 7. The… ### Trigonometry Grid With Domain -π to π And Range -7 to 7

Illustration of a trigonometric grid with a domain from -π to π and a range from -7 to 7. The… ### Trigonometry Grid With Domain -π to π And Range -8 to 8

Illustration of a trigonometric grid with a domain from -π to π and a range from -8 to 8. The… ### Trigonometry Grid With Domain -π to π And Range -8 to 8

Illustration of a trigonometric grid with a domain from -π to π and a range from -8 to 8. The… ### Trigonometry Grid With Domain -π to π And Range -8 to 8

Illustration of a trigonometric grid with a domain from -π to π and a range from -8 to 8. The… ### Trigonometry Grid With Domain -π to π And Range -9 to 9

Illustration of a trigonometric grid with a domain from -π to π and a range from -9 to 9. The… ### Trigonometry Grid With Domain -π to π And Range -9 to 9

Illustration of a trigonometric grid with a domain from -π to π and a range from -9 to 9. The… ### Trigonometry Grid With Domain -π to π And Range -9 to 9

Illustration of a trigonometric grid with a domain from -π to π and a range from -9 to 9. The… ### Trigonometry Grid With Domain -2π to 2π And Range -1 to 1

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -1 to 1. The… ### Trigonometry Grid With Domain -2π to 2π And Range -1 to 1

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -1 to 1. The…