6.2 Trigonometric Ratio Introduction Practice

Front

What is the definition of a trigonometric ratio?

Back

A trigonometric ratio is a ratio of the lengths of two sides of a right triangle. The primary trigonometric ratios are sine, cosine, and tangent.

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Front

What is the sine ratio?

Back

Sine (sin) is the ratio of the length of the opposite side to the length of the hypotenuse in a right triangle.

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Front

What is the cosine ratio?

Back

Cosine (cos) is the ratio of the length of the adjacent side to the length of the hypotenuse in a right triangle.

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Front

What is the tangent ratio?

Back

Tangent (tan) is the ratio of the length of the opposite side to the length of the adjacent side in a right triangle.

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Front

If the opposite side is 7 and the hypotenuse is 25, what is the sine ratio?

Back

sin = Opp/Hyp = 7/25.

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Front

If the adjacent side is 24 and the hypotenuse is 25, what is the cosine ratio?

Back

cos = Adj/Hyp = 24/25.

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CCSS.HSG.SRT.C.6

Front

If the opposite side is 7 and the adjacent side is 24, what is the tangent ratio?

Back

tan = Opp/Adj = 7/24.

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Front

In a right triangle, if angle x is 30 degrees, what is the sine of x?

Back

sin(30°) = 1/2.

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Front

In a right triangle, if angle x is 45 degrees, what is the cosine of x?

Back

cos(45°) = √2/2.

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Front

In a right triangle, if angle x is 60 degrees, what is the tangent of x?

Back

tan(60°) = √3.

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