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tangent
In a right triangle, the ratio of the length
of the side opposite an angle to the length
of the side adjacent to the angle.
term
Any expression written as a product or quotient.
Example: 2xy, 4m2, or -3x2y3z
terminating decimal
A fraction whose decimal representation contains
a finite number of digits.
tessellate
The repeated use of geometric figures to completely
cover a plane without overlapping.
theoretical probability
Probability that is determined on the basis
of reasoning, not through experimentation.
transformation
A change in the position, shape, or size of
a geometric figure.
translation
A transformation, or change in position, resulting
from a slide with no turn.
transversal
A line that intersects two other lines.
trapezoid
A quadrilateral that has exactly two sides
parallel.
tree diagram
A diagram that shows outcomes of an experiment.
trend
The general drift or tendency in a set of
data.
triangle
A three-sided polygon.
trigonometry
Study of triangles, the measurements of their
parts and of angle functions and relations.
trinomial
A polynomial consisting of 3 terms.
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