Question

what is a quadrilateral
$5 {22 { {2 { {1 \frac{x { \frac{ \frac{?}{?} }{?} }^{2} }{?} \times \frac{?}{?} }^{?} \times \frac{?}{?} }^{?} }^{?} }^{?} }^{?}$
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Answer 1

Answer:

In Euclidean plane geometry, a quadrilateral is a polygon with four edges and four vertices. Other names for quadrilateral include quadrangle, tetragon, and 4-gon. A quadrilateral with vertices, and is sometimes denoted as. Wikipedia

Area: ½ x diagonal x (sum of perpendicular heights)

Perimeter: sum of sides of the quadrilateral

Number of vertices: 4

Number of edges: 4

Internal angle: 90° (for square and rectangle)

Sum of interior angles: 360°