Intro to Trigonometric Ratios

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What are the three basic trigonometric ratios?
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The three basic trigonometric ratios are sine (sin), cosine (cos), and tangent (tan).
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How is the sine of an angle defined in a right triangle?
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The sine of an angle is defined as the opposite side divided by the hypotenuse.
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How is the cosine of an angle defined in a right triangle?
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The cosine of an angle is the adjacent side divided by the hypotenuse.
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How is the tangent of an angle defined in a right triangle?
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The tangent of an angle is the opposite side divided by the adjacent side.
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What is the abbreviation for sine?
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The abbreviation for sine is sin.
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What is the abbreviation for cosine?
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The abbreviation for cosine is cos.
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What is the abbreviation for tangent?
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The abbreviation for tangent is tan.
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Which trigonometric ratio uses the opposite side and hypotenuse?
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The sine ratio uses the opposite side and hypotenuse.
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Which trigonometric ratio uses the adjacent side and hypotenuse?
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The cosine ratio uses the adjacent side and hypotenuse.
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Which trigonometric ratio uses the opposite side and adjacent side?
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The tangent ratio uses the opposite side and adjacent side.
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In which quadrant are all trigonometric ratios positive?
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All trigonometric ratios are positive in the first quadrant.
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What is the sine of a 90-degree angle?
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The sine of a 90-degree angle is 1.
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What is the cosine of a 0-degree angle?
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The cosine of a 0-degree angle is 1.
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What is the tangent of a 45-degree angle?
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The tangent of a 45-degree angle is 1.
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What is one practical use of trigonometric ratios?
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Trigonometric ratios are used in navigation, for measuring heights, and in architecture.
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