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corresponding
For a rigid transformation that takes one Rgure onto another, a part of the Rrst Rgure and its image in the second Rgure are called corresponding parts. We also talk about corresponding parts when we are trying prove two Rgures are congruent and set up a correspondence between the parts to see if the parts are congruent.
cosine
The cosine of an acute angle in a right triangle is the ratio (quotient) of the length of the adjacent leg to the length of the hypotenuse.
cross section
The Rgure formed by intersecting a solid with a plane.
cube root
The cube root of a number , written , is a number whose cube is , that is, .
cyclic quadrilateral
A quadrilateral all four of whose vertices lie on the same circle.
density
The mass or weight of a substance per unit volume
dependent events
Dependent events are two events from the same experiment for which the probability of one event depends on whether the other event happens.
dilation
A dilation with center and positive scale factor takes a point another point whose distance is times further away from than
directed line segment
A line segment with an arrow at one end specifying a direction.
image
along the line to is.
If a rigid transformation takes to , then is the pre-image and is the image.
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Course Guide