Chapter 7: Right Triangles and Basic Trig
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11 Terms
Geometric Mean
a positive number x such that a:x as x:b
Pythagorean Theorem
In a right triangle (side1)^2 + (side2)^2 = (hypotenuse)^2
Pythagorean Triple
three whole numbers that satisfy the Pythagorean Theorem
Short side
the side opposite 30Âș in a 30Âș - 60Âș - 90Âș
Long side
the side opposite 60Âș in a 30Âș - 60Âș - 90Âș
Trigonometry
The study of Triangles
Sine
the ratio of the opposite side to the hypotenuse
Cosine
the ratio of the adjacent side to the hypotenuse
Tangent
the ratio of the opposite side to the adjacent side
Angle of Elevation
(looking upward) the angle formed by the line of sight (hypotenuse) and the horizontal
Angle of Depression
(looking down) the angle formed by the line of sight (hypotenuse) and the horizontal
Note 
Flashcards (243)