radius
Произношение: [ˈreɪdiəs]
Контекст: «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.
Пример
The radius of the pizza is 10 inches, making it a nice size for sharing.
Пример
If the radius were smaller, we wouldn't have enough pizza for everyone.
Пример
What is the radius of this circle drawn on the paper?
Контекст: «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.
Пример
Using the radius of 5 centimeters, we calculated the area of the circle.
Пример
Without the correct radius, our calculations would not be accurate.
Пример
How do we use the radius to find the area of the circle?
Контекст: «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.
Пример
The radius of the sound from the speaker was loud enough to be heard across the room.
Пример
The radius of the smell from the cookies baking didn't reach the next room.
Пример
What is the effective radius for this light bulb?