radius
Pronunciación: [ˈreɪdiəs]
Contexto: «geometry»
(noun) the distance from the center of a circle to any point on its edge. Imagine a circle like a pizza—the radius is like the line from the middle of the pizza to the crust.
Ejemplo
The radius of the pizza is 10 inches, making it a nice size for sharing.
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If the radius were smaller, we wouldn't have enough pizza for everyone.
Ejemplo
What is the radius of this circle drawn on the paper?
Contexto: «math/technology»
(noun) the length of a line used in calculations, especially in formulas that involve circles. This helps us find things like the area or circumference of the circle.
Ejemplo
Using the radius of 5 centimeters, we calculated the area of the circle.
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Without the correct radius, our calculations would not be accurate.
Ejemplo
How do we use the radius to find the area of the circle?
Contexto: «science/medicine»
(noun) the distance from a central point to the limit of a certain area or effect. Like how far you can hear sound or feel a breeze from a fan.
Ejemplo
The radius of the sound from the speaker was loud enough to be heard across the room.
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The radius of the smell from the cookies baking didn't reach the next room.
Ejemplo
What is the effective radius for this light bulb?