Example Sentences for soothe. 1  Lance longed for the right to soothe her, but only durst lay his hand on the back of her chair. 2  He hastened to soothe his feelings with a plausible explanation. 3  To soothe the irritation, the stomach should be soaped in the same manner as recommended in Head, Soaping the (see also Lather).
A convex quadrilateral is a four-sided figure with interior angles of less than 180 degrees each and both of its diagonals contained within the shape. A diagonal is a line drawn from one angle to an opposite angle, and the two diagonals intersect at one point.
In Euclidean plane geometry, a quadrilateral is a polygon with four edges (or sides) and four vertices or corners. Sometimes, the term quadrangle is used, by analogy with triangle, and sometimes tetragon for consistency with pentagon (5-sided), hexagon (6-sided) and so on. An equivalent condition is that opposite sides are parallel (a square is a parallelogram), that the diagonals perpendicularly bisect each other, and are of equal length. 2  A quadrilateral is a square if and only if it is both a rhombus and a rectangle (four equal sides and four equal angles).