radius

radio

La distancia desde el centro de un círculo o una esfera hasta su borde exterior.

En inglés sencillo: The distance from the center of a circle or ball to its outer edge.

• The radius is five centimeters.
• Double the radius to find the diameter.
• Several villages lie within a ten-kilometer radius of the school.

Cómo se usa: a radius of something (The circle has a radius of four centimeters.); within a radius of something (Deliveries are free within a radius of five kilometers.)

Expresiones frecuentes: radius of something, within a radius, five kilometer radius

radio

Un segmento recto que va desde el centro de un círculo o una esfera hasta su borde exterior.

En inglés sencillo: A straight line from the center of a circle or ball to its outer edge.

• Draw a radius from the center.
• Each radius meets the circle at its edge.
• The diagram shows two radii forming an angle.

Cómo se usa: the radius of something (Draw a radius of the circle in red.)

Expresiones frecuentes: draw a radius, radius of something, circle radius

radio

Uno de los dos huesos principales del antebrazo o de la parte inferior de la pata delantera de un animal.

En inglés sencillo: One of the two main bones in the lower part of an arm or animal foreleg.

• She broke her radius.
• The surgeon examined the lower end of the radius.
• The animal has a short radius beside its ulna.

Expresiones frecuentes: radius and ulna, fractured radius, distal radius