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  2. Varignon's theorem - Wikipedia

    en.wikipedia.org/wiki/Varignon's_theorem

    An arbitrary quadrilateral and its diagonals. Bases of similar triangles are parallel to the blue diagonal. Ditto for the red diagonal. The base pairs form a parallelogram with half the area of the quadrilateral, A q, as the sum of the areas of the four large triangles, A l is 2 A q (each of the two pairs reconstructs the quadrilateral) while that of the small triangles, A s is a quarter of A ...

  3. Parallelogram - Wikipedia

    en.wikipedia.org/wiki/Parallelogram

    All of the area formulas for general convex quadrilaterals apply to parallelograms. Further formulas are specific to parallelograms: Further formulas are specific to parallelograms: A parallelogram with base b and height h can be divided into a trapezoid and a right triangle , and rearranged into a rectangle , as shown in the figure to the left.

  4. Trapezoid - Wikipedia

    en.wikipedia.org/wiki/Trapezoid

    Trapezoid special cases. The orange figures also qualify as parallelograms. A right trapezoid (also called right-angled trapezoid) has two adjacent right angles. [13] Right trapezoids are used in the trapezoidal rule for estimating areas under a curve. An acute trapezoid has two adjacent acute angles on its longer base edge.

  5. Glossary of biology - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_biology

    This glossary of biology terms is a list of definitions of fundamental terms and concepts used in biology, the study of life and of living organisms.It is intended as introductory material for novices; for more specific and technical definitions from sub-disciplines and related fields, see Glossary of cell biology, Glossary of genetics, Glossary of evolutionary biology, Glossary of ecology ...

  6. Today's Wordle Hint, Answer for #1252 on Friday ... - AOL

    www.aol.com/todays-wordle-hint-answer-1252...

    OK, that's it for hints—I don't want to totally give it away before revealing the answer! Related: 16 Games Like Wordle To Give You Your Word Game Fix More Than Once Every 24 Hours

  7. Gene mapping - Wikipedia

    en.wikipedia.org/wiki/Gene_mapping

    There are two distinctive mapping approaches used in the field of genome mapping: genetic maps (also known as linkage maps) [7] and physical maps. [3] While both maps are a collection of genetic markers and gene loci, [8] genetic maps' distances are based on the genetic linkage information, while physical maps use actual physical distances usually measured in number of base pairs.

  8. Play Spades Online for Free - AOL.com

    www.aol.com/games/play/masque-publishing/spades

    Spades is all about bids, blinds and bags. Play Spades for free on Games.com alone or with a friend in this four player trick taking classic.

  9. Here's the Christmas town where Santa’s elves answer ... - AOL

    www.aol.com/news/heres-christmas-town-where...

    Every Christmas season, letters to Santa flood in from kids around the world — but in Santa Claus, Indiana, volunteers become Santa’s elves to ensure every child gets a reply.. This small town ...