Term |
Definition |
complementary angles |
two angles with a sum of 90 degrees. |
congruent |
two figures that have lengths and angle measurements of the same size |
equilateral triangle |
a triangle that has all three sides congruent. |
isosceles triangles |
triangles that have at least two congruent sides |
parallelogram |
a figure that is a quadrilateral with both pairs of opposite sides parallel and opposite sides congruent |
reflection |
a type of transformation involving a flip of the graphed figure |
rhombus |
a quadrilateral that has opposite sides parallel, all four sides congruent, and not all angles equal |
scalene triangle |
triangles that have no congruent sides |
similar |
figures that have congruent corresponding angles and proportional corresponding sides |
supplementary angles |
two angles with a sum that equals 180 degrees |
transformation |
a change in position, size, or shape of a figure on a coordinate plane. |
translation |
a type of transformation involving a slide of the graphed figure |
trapezoid |
a quadrilateral with exactly one set of parallel sides |
proportion |
an equation that states that two ratios are equal |
corresponding angles |
have the same position in two different similar figures and are congruent |
ratio |
a comparison of two numbers |
corresponding sides |
have the same position in two different similar figures and are proportional |
unit cost |
the cost for one unit of measure |
cross products |
a method that can be used to determine if two ratios are equal |