radius — a straight line from the center of a circle to its edge
Part of speech: NOUN
Definition: a straight line from the center of a circle to its edge
Pronunciation (IPA): /ˈreɪdiəs/
Korean meaning: 원의 중심에서 둘레까지의 직선거리, 반지름
Korean pronunciation: 레이-디-어스 (강세: 레이)
Example Sentences
- My mom can smell burnt food from a 10-meter radius.
- The WiFi signal works within a 50-meter radius of the router.
- Calculate the radius of the circle if the diameter is 20 cm.
radius
NOUN//ˈreɪdiəs//
a straight line from the center of a circle to its edge
💡 Concept
From center to edge
🎵 Rhyme
Check the status with radius apparatus!
🎤Pronunciation
🇺🇸 US/ˈreɪdiəs/
🇬🇧 UK/ˈreɪdiəs/
🌳Etymology
Rootradius
Origin
라틴어 'radius'에서 유래했는데, 원래는 '막대기, 바퀴살'이라는 뜻이었습니다. 바퀴의 중심에서 바깥쪽으로 뻗은 바퀴살의 모습이 원의 반지름과 닮아 있어서 수학 용어가 되었어요.
🎵Rhyme
statusapparatushiatus
status
apparatus
hiatus
🔗Collocations
within a radius of
turning radius
blast radius
search radius
effective radius
radius of curvature
📝Examples
😄 Fun example
“My mom can smell burnt food from a 10-meter radius.”
“The WiFi signal works within a 50-meter radius of the router.”
“Calculate the radius of the circle if the diameter is 20 cm.”
😄 Fun example
“There's a cat café within a 2-block radius of every university.”
📚Related Words
Synonyms
rangedistancescopeextentspan
Antonyms
centercore
Related
diametercircumferencecirclegeometryperimeter
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