Question

how many mathematical formula related to quadrilateral triangle and circle​

Answer 1

Answer:

A quadrilateral is a polygon in Euclidean plane geometry with four edges (sides) and four vertices (corners). Other names for quadrilateral include quadrangle (in analogy to triangle), tetragon (in analogy to pentagon and hexagon), and 4-gon (in analogy to n-gons for arbitrary values of n). A quadrilateral with vertices {\displaystyle A}, {\displaystyle B} {\displaystyle C}and {\displaystyle D}is sometimes denoted as {\displaystyle \square ABCD}[1][2]