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  1. en.wikipedia.org › wiki › TetrahedronTetrahedron - Wikipedia

    Vor 4 Tagen · In geometry, a tetrahedron (pl.: tetrahedra or tetrahedrons), also known as a triangular pyramid, is a polyhedron composed of four triangular faces, six straight edges, and four vertices. The tetrahedron is the simplest of all the ordinary convex polyhedra .

  2. Bilder

    • Do Triangles Have Four Sides? #shorts - YouTube
    • Fractions of 4-sided Polygon | ClipArt ETC
    • What Are 4 Sided Shapes Called? - Mastery Wiki
    • 5.4 Four-Sided Polygon - YouTube

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  3. www.omnicalculator.com › math › trapezoidTrapezoid Calculator

    1. Juli 2024 · Welcome to Omni's trapezoid calculator, where we'll learn all about these four-sided shapes. We'll show you how to calculate the area of a trapezoid, how to find the height of a trapezoid, or what the trapezoid perimeter formula looks like.

  4. www.omnicalculator.com › math › centroidCentroid Calculator

    1. Juli 2024 · What is the centroid formula for a triangle? To find the centroid of a triangle ABC, you need to find the average of vertex coordinates. So if A = (X₁,Y₁), B = (X₂,Y₂), C = (X₃,Y₃), the centroid formula is: G = [ (X₁ + X₂ + X₃)/3 , (Y₁ + Y₂ + Y₃)/3 ]

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  6. brilliant.org › wiki › regular-polyhedraRegular Polyhedra | Brilliant Math & Science Wiki

    Vor einem Tag · There are nine regular polyhedra all together: five convex polyhedra or Platonic solids. four "star" polyhedra or Kepler-Poinsot polyhedra. Regular polyhedra (particularly the Platonic solids) are commonly seen in nature.

  7. www.geeksforgeeks.org › polyhedronsPolyhedron | Meaning, Shapes, Formula, and Examples

    13. Juni 2024 · A polyhedron is a three-dimensional shape with flat polygonal faces, straight edges, and sharp vertices. Examples include cubes, prisms, and pyramids. However, shapes such as cones and spheres do not qualify as polyhedrons because they lack polygonal faces.

    • Four Sided Triangle1
    • Four Sided Triangle2
    • Four Sided Triangle3
    • Four Sided Triangle4

  8. www.geeksforgeeks.org › area-of-quadrilateralArea of Quadrilateral - Formula, Definition, Examples, Class 8...

    Vor 5 Tagen · A quadrilateral is a closed two-dimensional shape with four sides or edges, and also four corners or vertices. In mensuration, the shape of objects is classified based on the number of sides of the polygon. The area of a quadrilateral can be found by dividing it into two triangles using a diagonal.

  9. brilliant.org › wiki › irregular-polygonsIrregular Polygons | Brilliant Math & Science Wiki

    Vor 4 Tagen · Polygons are two-dimensional geometric objects composed of points and straight lines connected together to close and form a single shape. Irregular polygons are polygons that have unequal angles and unequal sides, as opposed to regular polygons which are polygons that have equal sides and equal angles.