Term
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Definition
| The parallel sides are called bases. |
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Term
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Definition
| The nonparallel sides are called legs. |
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Term
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Definition
| The base agles are formed by the base and one of the legs. |
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Term
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Definition
| If the legs of a trapezoid are congruent, then it is an isosceles trapezoid. |
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Term
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Definition
6.21
If a trapezoid is isosceles, then each pair of base angles is congruent.
6.22
If a trapezoid has one pair of congruent base angles, then it is an isosceles trapezoid.
6.23
A trapezoid is isosceles if and only if its diagonals are congruent. |
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Term
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Definition
| A trapezoid is a quadrilateral with exactly one pair of parallel sides. |
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Term
| Midsegment of a Trapezoid |
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Definition
| The midsegment of a trapezoid is the segment that connects the midpoints of the legs of the trapezoid. |
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Term
| Trapezoid Midsegment Theorem |
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Definition
| The midsegment of a trapezoid is parallel to each base and its measure is one half the sum of the lengths of the bases. |
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Term
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Definition
| A quadrilateral with exactly two distinct pairs of adjacent congruent sides. |
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Term
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Definition
| In a polygon, a segment that connects nonconsecutive vertices of the polygon. |
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Term
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Definition
| A quadrilateral with all four sides congruent. |
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Term
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Definition
| A quadrilateral with four right angles and four congruent sides. |
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Term
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Definition
| A quadrilateral with four right angles. |
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Term
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Definition
| A quadrilateral with parallel opposite sides. Any side of a parallelogram may be called a base. |
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Term
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Definition
| The proportional is true if and only if the cross products are equal. |
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Term
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Definition
| A transformation determined by a center point C and a scale factor K. |
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Term
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Definition
| In a/b=c/d, the numbers a and d. |
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Term
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Definition
| A comparison of two quantities using division. |
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Term
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Definition
| The scale of a model or drawing is the ratio of a length on the model or drawing is the ratio of a length on the model or drawing to the actual length of the object being modeled or drawn. |
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Term
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Definition
| An image that is smaller than the original figure. |
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Term
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Definition
| The ratio of the lengths of the lengths of two corresponding sides of two similar polygons or two similar solids. |
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Term
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Definition
| In a/b=c/d, the numbers b and c. |
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Term
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Definition
| An equation of the form a/b=c/d that states that two ratios are equal. |
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Term
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Definition
| A segment with endpoints that are the midpoints of two sides of a triangle. |
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Term
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Definition
| An image that is larger than the original figure. |
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Term
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Definition
| A scale model or scale drawing is an object or drawing with lengths proportional to the object it represents. |
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Term
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Definition
| Similar polygons have the same shape but necessarily the same size. |
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Term
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Definition
| A scale model or scale drawing is an object or drawing with lengths proportional to the object it represents. |
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Term
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Definition
| If the corresponding side lengths of two triangles are proportional, then the triangles are similar. |
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Term
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Definition
| If the lengths of two sides of one triangle are proportional to the lengths of two corresponding sides of another triangle and the included angles are congruent, then the triangles are similar. |
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