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12. What is the name given to a quadrilateral in which,a. One pair of opposite sides are parallel.b. Two adjacent pairs of sides are of equal length.A special type of rhombus having all angles equal.C.d. Two line segments, whose lengths are 12cm and 8 cm, bisect each other at rightangles and their end points are joined together. |
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Answer» Answer: In Euclidean PLANE geometry, a quadrilateral is a polygon with four edges (sides) and four vertices (corners). 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 {\displaystyle A}A, {\displaystyle B}B, {\displaystyle C}C and {\displaystyle D}D is SOMETIMES DENOTED as {\displaystyle \square ABCD}{\displaystyle \square ABCD} |
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