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Shapes Quadrangles, rectangles, square, ... [Home] [Search] [Forum] [Links] [Contact] [Imprint] [Sitemap]
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Ø Quadrangles
Any quadrangle has four sides of any length. It has two variable diagonals and the sum of all angles is 360 degrees.
Ø Rectangles
A rectangle has four sides, two times two different sides that each lay parallel to each other. The diagonals are the same length and the sum of all angles is 360 degrees. Ø Square
A square has four sides all of which have the same length and are parallel to each other. All angles are right angles (90 degrees). The diagonals are the same length and perpendicular to another. The sum of all angles is 360 degrees. Ø Parallelogram
A parallelogram has four sides. Two of those sides are the same length and stand parallel to another. The facing angles are the same length and the sum of all angles is 360 degrees. Ø Trapezoid
A trapezoid has four sides and at least two sides are parallel to another. The sum of all angles is 360 degrees. Ø Rhombus
The rhombus is also a four sided figure. All sides are parallel to the sides they are facing. The sum of all angles is 360 degrees.
Ø Kite
The kite is a four sided figure where the diagonals stand diagonally to another.
Ø Triangle
Every triangle has three sides (any triangle side can be any length), three heights (vertical lines from one corner to the opposite side) and the sum of all angles is 180 degrees.
Ø Right angled triangle
The right angled triangle has its name because of its right angle. On this right angle are the sides a and b; the legs. Opposite of the right angle is the c side; the hypotenuse.
Ø Isosceles triangle
An isosceles triangle has one base on which two equally long arms (sides) stand. The height on the base divides the triangle in two equally long parts.
Ø Equilateral triangle
An equilateral triangle has three equally long sides. Every angle is 60 degrees and every height divides the triangle in two equally big triangles.
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