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Right Triangle Trig Vocab
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Terms in this set (14)
adjacent side
the side next to the reference angle in a right triangle
angle of depression
the angle between the horizontal and the line of sight to an object below the horizontal
angle of elevation
the angle between the horizontal and the line of sight to an object above the horizontal
complementary angles
two angles that sum of measures equal 90degrees
cosine
in a right triangle, the ratio of the length of the side adjacent to the angle divided by the hypotenuse
hypotenuse
the longest side of a right triangle
opposite side
the side across from the reference angle in a right triangle
right triangle
a triangle containing one angle that measures exactly 90 degrees
similar triangles
triangles with corresponding angles are congruent and corresponding sides are proportional
sine
in a right triangle , the ratio of the length of the side opposite the angle divided by the hypotenuse
tangent
in a right triangle, the ratio of the length of the side opposite the angle divided by the length of the adjacent side
trigonometry
a branch of mathematics that deal with the relationships between the sides of angles of triangles and the calculations based on these relationships
trigonometric ratio
a ratio that describes a relationship between the sides and angles of a right triangle
area of triangle
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