Alcohol Effects question 3. A âhangoverâ is perhaps the least concerning effect amongst the gamut of negative health consequences to drinking â which also includes cardiovascular damage, increased risk for depression, liver damage, and cancers.
A quadrilateral is a closed figure with four straight sides. A closed figure means there are no gaps between sides and no side extends past the end of another side. If both segments lie inside the quadrilateral, then the figure is convex.
4 congruent sides. 4 right angles (90Â°). Opposite sides are parallel. All angles are congruent. Trapezoid. Only one pair of opposite sides is parallel. Summary. A quadrilateral is a mathematical name for a four-sided polygon. Parallelograms, squares, rectangles, and trapezoids are all examples of quadrilaterals. These quadrilaterals earn their distinction based on their properties, including the number of pairs of parallel sides they have and their angle and side measurements.