Which angles of the quadrilateral must be supplementary? All squares are quadrilaterals. There are four methods that you can use to prove that a quadrilateral is a square. for what values of a and b is each quadrilateral a parallelogram? Remember, if you see the word quadrilateral, it does not necessarily mean a figure with special properties like a square or rectangle! a. is a parallelogram with perpendicular diagonals b. is both a rectangle and a rhombus c. has all sides congruent and all angles congruent d. has all right angles and has all sides congruent ____ 2. Turns out that if even both facts together are true, that does not guarantee that the shape is a square. Do not despair, though, because a few of them yield to area formulas, just as the square does. If the shape is close to being a square but not exactly a square, it doesn't necessarily have any of the square properties. So in this diagram, it is true that BC equals CD. Which statement does not guarantee that a quadrilateral is a square? So this one does not guarantee the quadrilateral is a square. If a quadrilateral has 4 equal sides and 4 equal angles, its angles must be 90 degrees each, and 4 equal sides, so it guarantees it is a square. Special Quadrilaterals. Suppose both pairs of opposite sides of a quadrilateral are parallel. John T. Lv 6. Which statement is true? A quadrilateral is a polygon in Euclidean plane geometry with four edges (sides) and four vertices (corners). Which description does not guarantee that a quadrilateral is a square? If it does not have four sides that are equal then it is not a square or if it does not have four right angles then it is not … Geometry. 0 0. Which description does NOT guarantee that a quadrilateral is a parallelogram? In word problems, be careful not to assume that a quadrilateral has parallel sides or equal sides unless that is stated. "It has four sides" is a description that does not guarantee that a quadrilateral is a square. Which description does NOT guarantee that a quadrilateral is a square? Which description does NOT guarantee that a quadrilateral is a square? Question 7 options: has all right angles and has all sides congruent has all sides congruent and all angles congruent is a parallelogram with perpendicular diagonals is both a rectangle and a rhombus In fact, it's not any special quadrilateral at all. It could be just two congruent right triangles attached at the hypotenuse, like this. In addition to symmetrical, irregular quadrilaterals, other irregular quadrilaterals can exist without symmetry, just four unequal sides: [insert drawing irregular quadrilateral MATH with labeled sides MA = 7 cm, AT = 3 cm, TH = 12 cm, HM = 14 cm] a. Left side: 5a Top: 3a+1 Right side: 2b-5 Bottom: b . 10 years ago. Other names for quadrilateral include quadrangle (in analogy to triangle), tetragon (in analogy to pentagon, 5-sided polygon, and hexagon, 6-sided polygon), and 4-gon (in analogy to k-gons for arbitrary values of k).A quadrilateral with vertices , , and is sometimes denoted as . c. a quadrilateral with both pairs of opposite sides congruent a quadrilateral with the diagonals bisecting each other a quadrilateral with consecutive angles supplementary quadrilateral with two opposite sides parallel b. It could be just two congruent right triangles attached at the hypotenuse, like this. ... that does not guarantee that the shape is a square. I do not understand what this question is asking and how I should answer. 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