what to write in a project on quadrilaterals
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In Euclidean plane geometry, a quadrilateral is a polygon with four edges (or sides) and fourvertices or corners. Sometimes, the termquadrangle is used, by analogy with triangle, and sometimes tetragon for consistency withpentagon (5-sided), hexagon (6-sided) and so on.
Edges and vertices4Schläfli symbol{4} (for square)Areavarious methods;
see belowInternal angle(degrees)90° (for square and rectangle)
The word "quadrilateral" is derived from the Latin words quadri, a variant of four, and latus, meaning "side".
Quadrilaterals are simple (not self-intersecting) or complex (self-intersecting), also called crossed. Simple quadrilaterals are either convex or concave.
The interior angles of a simple (and planar) quadrilateral ABCD add up to 360 degrees of arc, that is
{\displaystyle \angle A+\angle B+\angle C+\angle D=360^{\circ }.}
This is a special case of the n-gon interior angle sum formula (n − 2) × 180°.
All non-self-crossing quadrilaterals tile the plane by repeated rotation around the midpoints of their edges
Edges and vertices4Schläfli symbol{4} (for square)Areavarious methods;
see belowInternal angle(degrees)90° (for square and rectangle)
The word "quadrilateral" is derived from the Latin words quadri, a variant of four, and latus, meaning "side".
Quadrilaterals are simple (not self-intersecting) or complex (self-intersecting), also called crossed. Simple quadrilaterals are either convex or concave.
The interior angles of a simple (and planar) quadrilateral ABCD add up to 360 degrees of arc, that is
{\displaystyle \angle A+\angle B+\angle C+\angle D=360^{\circ }.}
This is a special case of the n-gon interior angle sum formula (n − 2) × 180°.
All non-self-crossing quadrilaterals tile the plane by repeated rotation around the midpoints of their edges
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Answer:
quadrilateral has 4 sides
their sum of interior angles is 360°
they have 4 angles
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