SOH CAH TOA

Front

What is SOH CAH TOA?

Back

SOH CAH TOA is a mnemonic for remembering the definitions of the sine, cosine, and tangent functions in a right triangle: SOH = Sine = Opposite/Hypotenuse, CAH = Cosine = Adjacent/Hypotenuse, TOA = Tangent = Opposite/Adjacent.

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CCSS.HSG.SRT.C.6

Front

What is the reciprocal of sine?

Back

Cosecant (csc) is the reciprocal of sine.

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CCSS.HSF.TF.A.2

Front

What is the reciprocal of cosine?

Back

Secant (sec) is the reciprocal of cosine.

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CCSS.HSF.TF.A.2

Front

What is the reciprocal of tangent?

Back

Cotangent (cot) is the reciprocal of tangent.

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CCSS.HSF.TF.A.2

Front

If sinΘ = 8/17, what is cscΘ?

Back

cscΘ = 17/8.

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CCSS.HSG.SRT.C.7

Front

If cosA = 30/34, what is sinA?

Back

Using the Pythagorean identity, sinA = √(1 - cos²A) = √(1 - (30/34)²) = 16/34.

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CCSS.HSF.TF.C.8

Front

How do you find the missing angle in a right triangle?

Back

Use the inverse trigonometric functions or the fact that the sum of angles in a triangle is 180 degrees.

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CCSS.HSG.SRT.C.8

Front

What is the formula for finding the tangent of an angle?

Back

Tangent (tan) = Opposite side / Adjacent side.

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CCSS.HSG.SRT.C.6

Front

If the opposite side is 6.4 and the adjacent side is 9, what is tanΘ?

Back

tanΘ = 6.4/9.

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CCSS.HSG.SRT.C.6

Front

What is the sine of a 30° angle?

Back

sin(30°) = 1/2.

Tags

CCSS.HSG.SRT.C.7