The Legend of Chief Soh Cah Toa A

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The Legend of Chief Soh. Cah. Toa

The Legend of Chief Soh. Cah. Toa

A young brave of the Lumbee Tribe, frustrated by his inability to understand the

A young brave of the Lumbee Tribe, frustrated by his inability to understand the geometric constructions of his tribe's battle dress…

…kicked out in anger against a stone and crushed his big toe.

…kicked out in anger against a stone and crushed his big toe.

Fortunately, the young brave learned from this experience, and began to use study and

Fortunately, the young brave learned from this experience, and began to use study and concentration to solve his problems rather than violence.

This was especially effective in his study of math,

This was especially effective in his study of math,

And he went on to become the wisest man of his tribe.

And he went on to become the wisest man of his tribe.

According to legend the brave’s father, the tribal chief, dies.

According to legend the brave’s father, the tribal chief, dies.

Following tradition, the wise brave was to take his father’s place.

Following tradition, the wise brave was to take his father’s place.

As custom dictates, the tribe’s Shaman gave the new Chief a name that reflected

As custom dictates, the tribe’s Shaman gave the new Chief a name that reflected his special nature

A name that reminded them of his great discoveries and of the event which

A name that reminded them of his great discoveries and of the event which changed his life.

A name that took into account that he was troubled throughout his life by

A name that took into account that he was troubled throughout his life by the problematic foot,

And that he was constantly at the edge of the river, soaking his feet

And that he was constantly at the edge of the river, soaking his feet in the cooling waters.

The high priest declared that the wise brave shall be called

The high priest declared that the wise brave shall be called

The high priest declared that the wise brave shall be called Chief Soh. Cah.

The high priest declared that the wise brave shall be called Chief Soh. Cah. Toa.

Chief Soh. Cah. Toa studied many aspects of trigonometry

Chief Soh. Cah. Toa studied many aspects of trigonometry

And even today we remember many trigonometric functions by his name.

And even today we remember many trigonometric functions by his name.

Trigonometric Functions SINE COSINE TANGENT

Trigonometric Functions SINE COSINE TANGENT

Trigonometric Functions SINE COSINE TANGENT

Trigonometric Functions SINE COSINE TANGENT

SINE Prounounced “sign”

SINE Prounounced “sign”

COSINE Prounounced “co-sign”

COSINE Prounounced “co-sign”

TANGENT Prounounced “tan-gent”

TANGENT Prounounced “tan-gent”

Greek Letter Prounounced “theta” Represents an unknown angle

Greek Letter Prounounced “theta” Represents an unknown angle

en po t hy opposite adjacent us e

en po t hy opposite adjacent us e

We need a way to remember all of these ratios…

We need a way to remember all of these ratios…

SOHCAHTOA Sin Opp Hyp Cos Adj Hyp Tan Opp Adj

SOHCAHTOA Sin Opp Hyp Cos Adj Hyp Tan Opp Adj

Finding sin, cos, and tan

Finding sin, cos, and tan

SOHCAHTOA 10 8 6

SOHCAHTOA 10 8 6

Find the sine, the cosine, and the tangent of angle A. Give a fraction

Find the sine, the cosine, and the tangent of angle A. Give a fraction and decimal answer (round to 4 places). 10. 8 9 A 6

Find the values of the three trigonometric functions of . ? 5 4 3

Find the values of the three trigonometric functions of . ? 5 4 3 Pythagorean Theorem: (3)² + (4)² = c² 5=c

Find the sine, the cosine, and the tangent of angle A B 8. 2

Find the sine, the cosine, and the tangent of angle A B 8. 2 Give a fraction and decimal answer (round to 4 decimal places). 24. 5 A 23. 1

So be sure to remember The Legend of Chief Soh. Cah. Toa.

So be sure to remember The Legend of Chief Soh. Cah. Toa.