radius
(noun)
/ˈreɪdiəs/
Giải nghĩa:
The straight line from the center to the edge of a circle or a ball
The straight line from the center to the edge of a circle or a ball
Ví dụ:
She drew a circle with a radius of 3 centimeters.
She drew a circle with a radius of 3 centimeters.
radius
(noun)
/ˈreɪdiəs/
Giải nghĩa:
A specific area or distance from a central point
A specific area or distance from a central point
Ví dụ:
The restaurant delivers within a 5-mile radius.
The restaurant delivers within a 5-mile radius.
Cách sử dụng
Radius is a math term that we use to describe the distance from the center of a circle to the edge of the circle. For example, if you draw a circle and you want to know how far it is from the very middle of the circle to the edge, that distance is called the radius. We can also use the word radius in other contexts, such as in science or engineering, to describe distance or size. It's important to understand what radius means so that you can communicate effectively in math, science, and technical fields.
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