A 180-degree angle is called a straight angle. Angles that are exactly 90 degrees are called right angles, while those that are between 0 and 90 degrees are called acute. Angles that are between 90 and 180 degrees are considered obtuse.
Know MoreOnce an angle is larger than 180 degrees, it is categorized as a reflex angle. As a reflex angle turns one full rotation of 360 degrees, a circle is formed.
Angles are created when two straight lines intersect. The place where the two lines meet is called the vertex, while the two lines are called the arms of the angle. Rotating one of the arms either increases or decreases the angle measurement depending upon the direction of rotation.
Learn more about GeometryA symmetrical pattern is a pattern in which converging lines form an angle that somewhat resembles an acute angle. When two patterns are symmetrical, one becomes exactly like another when flipped or turned, according to Primary Resources.
Full Answer >Geometric forms and structures are abundant in nature, and many of the natural processes that drive growth obey rules that can be described with fractal geometry. Plants, animals and many landforms develop in ways that generate recognizable shapes solely as a result of forces such as natural selection or erosion.
Full Answer >A 12-sided shape is called a dodecagon. A dodecagon is a type of polygon, which is a two-dimensional shape comprised of straight lines. These lines connect to each other to form a closed shape.
Full Answer >A polygon with five sides is called a pentagon. In Greek, "pente" means "five." When math textbooks discuss pentagons, they are typically referring to a polygon with five equal sides, otherwise known as a regular pentagon.
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