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Level 2

Unit 2


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Opposite
Across the angle you are referring to
Adjacent
Touches the angle you are referring to, is not the hypotenuse
Hypotenuse
Faces the right angle in a right-angle triangle. Also, the longest side of a right side of triangle
Angle of Inclination/Elevation
The acute angle UP from the horizontal and a line or line segment
Angle of Depression
The angle DOWN from the horizontal and a line or line segment
Sine Ratio
Length of side opposite/ length of hypotenuse
Tan Ratio
Length of opposite / length of adjacent
Cosine Ratio
Length of adjacent/ length of hypotenuse
Clinometer
A tool used to measure an angle above or below the horizontal
Pythagorean Theorem
side adjacent^2 + side opposite^2 = side hypotenuse^2 = a^2 + b^2 = c^2