Stop signs are octagons. An octagon is a shape that has eight sides, whereas a hexagon only has six sides.
Know MoreIn North America, you will find stop signs to assist right of way for pedestrians and traffic. They are used in areas of towns and cities that are not large enough to warrant the use of traffic lights. Stop signs can be used alone or as part of a three-way or four-way stop.
Both hexagons and octagons can be irregular or regular. A regular shape has sides that are all equal in length. An irregular shape has sides of different lengths.
Learn more about GeometryThe number of symmetry lines for a star depends on the particular types of star. A five-pointed star has five lines of symmetry. However, a six-pointed star has six lines of symmetry.
Full Answer >Numeric constraints are conditions that occur in computer-aided drafting and engineering that are used to define a field in which a specific action occurs. They can refer to simple numeric values or algebraic formulas that occur within a given program.
Full Answer >Opposite angles, known as vertically opposite angles, are angles that are opposite to each other when two lines intersect. Vertically opposite angles are congruent, meaning they are equal in degrees of measurement. An angle measures the amount of rotation and can be expressed as degrees, radians and gradians. In some cases, the phrase "plane angle" is used to distinguish angles in a plane from angles in space.
Full Answer >Calculate the area of a trapezoid by identifying the length of the two parallel bases and the height of the polygon. Then, use the formula A = a + b/2 (h), where "a" and "b" are the two parallel base lengths and "h" refers to the height of the polygon.
Full Answer >