What is quadrilateral

1.	What is quadrilateral
Answer» Answer: In Euclidean plane geometry, a quadrilateral is a polygon with four edges and four vertices or corners. Sometimes, the term quadrangle is used, by analogy with TRIANGLE, and sometimes tetragon for consistency with pentagon and hexagon, or 4-gon for consistency with k-gons for arbitrary values of k. Step-by-step explanation: 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)

Answer»

Answer:

In Euclidean plane geometry, a quadrilateral is a polygon with four edges and four vertices or corners. Sometimes, the term quadrangle is used, by analogy with TRIANGLE, and sometimes tetragon for consistency with pentagon and hexagon, or 4-gon for consistency with k-gons for arbitrary values of k.

Step-by-step explanation:

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)

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