One in every 5 children in the U.S. develops anemia at some point during childhood, according to the authors of a June 2010 article published in American Family Physician. While there are many causes of childhood anemia, some common signs and symptoms are prevalent in children affected by the condition. If your child has signs or symptoms suggestive of anemia, schedule an appointment with your doctor for testing and appropriate treatment.
Semi in Latin means half. Semicircle by itself means half circle. In Geometry, semicircle can be defined as a 2-dimensional figure that forms half of a circle is called Semicircle. It is a closed shape that is half a circle but diameter of that circle. Which means the diameter of a circle cuts the circle into two equal semicircles.
A circle is a set of all points in a plane that are all an equal distance from a single point, the center. The distance from a circle's center to a point on the circle is called the radius of the circle. A radius is a line segment with one endpoint at the center of the circle and the other endpoint on the circle. For the circle below AD, DB, and DC are radii of a circle with center D. A line segment that crosses the circle by passing through the center of the circle is called the diameter. The diameter twice the length of the radius. In the circle above AC is the diameter of the circle. A chord is a segment that also has endpoints on the circle, but the line does not need to cross through the center. On the circle below BC and AC are chords. A diameter is a chord that passes through the center of the circle. A secant is a line that intersects with a circle at 2 different points.