This clip uses practical problems to explain how to find the length of a semi-circle. "The length of the semi-circle is half the length of the circumference," the clip states. "That means, once we know the circumference ..
This clip explains that, when the sides of a polygon are stated in different units, it's necessary to convert so that they are expressed in the same units. Once this is done, the sides can be added up and the perimeter d..
This clip introduces the term "perimeter," which it explains "...refers to the distance around a polygon." The clip references some of the more common polygons, including triangles, pentagons, hexagons and octagons. The ..
This clip explains that, " we can find the perimeter of any polygon by adding the lengths of all sides." The clip includes practical problems and examples which demonstrate how this is done.
This clip explains that we can measure the perimeter of an equilateral polygon by multiplying the length of one side by the number of sides in the polygon. The clip also notes that the formula for measuring the perimeter..
This clip summarizes how to find the perimeter of several kinds of polygons. It explains the difference between irregular and equilateral polygons, and also explores the parts of a circle and how, in conjunction with pi,..
This clip explains that with larger numbers, it's more difficult to " just examine the number, see some factors, examine those and so on until you're done." In such cases, the clip explains, there's another method of fi..
This clip contrasts the number twelve, which can be factored in several ways, with the number thirteen, which can only be factored as thirteen times one. The clip states that the question of whether or not a whole number..
This clip introduces factoring, explaining in the process that every number equals itself times one, and that the order of the numbers doesn't matter in factoring.
This clip states one of the most basic laws of arithmetic: every number has one and only one prime factorization. The clip also explains how to determine that factorization, using a process known as branching. The clip a..