A flattened Sonobe [soh-noh-bay] unit has this shape. The midpoints of any quadrilateral can be connected to form one of these figures. Vectors may be added using a "rule" named for this shape, whose diagonals (*) bisect each other, but not necessarily perpendicularly. If on
A flattened Sonobe [soh-noh-bay] unit has this shape. The midpoints of any quadrilateral can be connected to form one of these figures. Vectors may be added using a "rule" named for this shape, whose diagonals (*) bisect each other, but not necessarily perpendicularly. If one of these shapes is inscribed in a circle, it must be a rectangle. Congruent opposite angles, and supplementary adjacent angles are found in, for 10 points, what quadrilateral whose opposite sides are congruent and parallel?
A flattened Sonobe [soh-noh-bay] unit has this shape. The midpoints of any quadrilateral can be connected to form one of these figures.