ISOSCELESTRAPEZOID
Isosceles trapezoid
In Euclidean geometry, an isosceles trapezoid is a convex quadrilateral with a line of symmetry bisecting one pair of opposite sides, making it automatically a trapezoid. Some sources would qualify this with the exception: "excluding rectangles." Two opposite sides are parallel, and the two other sides are of equal length . The diagonals are also of equal length. The base angles of an isosceles trapezoid are equal in measure .The above text is a snippet from Wikipedia: Isosceles trapezoid
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isosceles trapezoid
Noun
- A quadrilateral with two parallel sides and a separate pair of congruent sides which are not parallel.
The above text is a snippet from Wiktionary: isosceles trapezoid
and as such is available under the Creative Commons Attribution/Share-Alike License.