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2. Trapezoid - Wikipedia

   en.wikipedia.org/wiki/Trapezoid

   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. An obtuse trapezoid on the other hand has one acute and one obtuse angle on each base.

3. Base (geometry) - Wikipedia

   en.wikipedia.org/wiki/Base_(geometry)

   The extended base of a triangle (a particular case of an extended side) is the line that contains the base. When the triangle is obtuse and the base is chosen to be one of the sides adjacent to the obtuse angle, then the altitude dropped perpendicularly from the apex to the base intersects the extended base outside of the triangle. The area of ...

4. Pattern Blocks - Wikipedia

   en.wikipedia.org/wiki/Pattern_blocks

   An example of their use is given by Meha Agrawal: "Starting from the center, I would add tier after tier of blocks to build my pattern — it was an iterative process, because if something didn't look aesthetically appealing or fit correctly, it would require peeling off a layer and reevaluating ways to fix it.

5. Tangential trapezoid - Wikipedia

   en.wikipedia.org/wiki/Tangential_trapezoid

   The formula for the area of a trapezoid can be simplified using Pitot's theorem to get a formula for the area of a tangential trapezoid. If the bases have lengths a, b, and any one of the other two sides has length c, then the area K is given by the formula [2] (This formula can be used only in cases where the bases are parallel.)

6. Isosceles trapezoid - Wikipedia

   en.wikipedia.org/wiki/Isosceles_trapezoid

   Any non-self-crossing quadrilateral with exactly one axis of symmetry must be either an isosceles trapezoid or a kite. [5] However, if crossings are allowed, the set of symmetric quadrilaterals must be expanded to include also the crossed isosceles trapezoids, crossed quadrilaterals in which the crossed sides are of equal length and the other sides are parallel, and the antiparallelograms ...

7. 'Vile' sex abuser with dozens of child victims jailed - AOL

   www.aol.com/dangerous-sex-offender-sentenced-27...

   A "prolific and chilling" sex abuser from Northern Ireland has been sentenced to 27 years in prison. David John Andrews, 55, with an address at Maghaberry Prison, pleaded guilty to 130 charges of ...