Meanings of 直径
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Podcast: 直径
Podcast: 直径
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AI study notes for 直径
半径 (bànjìng) — use 直径 when referring to the full width of a circle through its center, not just the distance from the center to the edge.
Be careful to use 直径 specifically in contexts relating to circles or spheres; using it out of context can confuse its meaning. It is more formal, so in casual conversation, people might simply say '圆的宽度' (the width of a circle) instead. Remember that the first tone of 直 can be easily confused with other similar-sounding words.
As an HSK Level 6 word, 直径 connects with other mathematical terms at this level, like 面积 (area) and 半径 (radius). Focus on practicing its usage in sentences related to geometry and measurements to reinforce understanding.
Learners often confuse 直径 with 半径, mistakenly using them interchangeably. For example, saying '这个圆的半径是10厘米' when they meant to say the diameter. Always remember that 半径 is half of 直径, not the same.
Pronunciation of 直径
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Component characters
How to say diameter in Chinese
“diameter” in Chinese is直径
直径 (zhíjìng) refers to the straight line segment that passes through the center of a circle and connects two points on its circumference. It is commonly used in mathematics, engineering, and everyday contexts when discussing circles or spherical objects. Understanding this term is essential for comprehending geometric principles and measurements.
When to use 直径
Be careful to use 直径 specifically in contexts relating to circles or spheres; using it out of context can confuse its meaning. It is more formal, so in casual conversation, people might simply say '圆的宽度' (the width of a circle) instead. Remember that the first tone of 直 can be easily confused with other similar-sounding words.
直径 or something close to it
半径 (bànjìng) — use 直径 when referring to the full width of a circle through its center, not just the distance from the center to the edge.
What learners get wrong
Learners often confuse 直径 with 半径, mistakenly using them interchangeably. For example, saying '这个圆的半径是10厘米' when they meant to say the diameter. Always remember that 半径 is half of 直径, not the same.
Write 直径
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Practice writing 直径 stroke by stroke. Watch the animation to learn the stroke order, then try writing it yourself.
Grammar patterns of 直径
直径 functions as a noun — it names a person, place, thing, or concept. Place it as a subject before the verb (主+谓) or as an object after the verb (谓+宾). Most Chinese nouns require a measure word between the number and the noun (e.g. 一个/三本). The example sentences below show it in action, with practice buttons (Listen, Practice Writing, Practice Speaking) on every line.
Fill the gap
Type the missing word. Pinyin works; then pick the character.
圆的____与圆周有相互关系.
The diameter and the circumference of a circle correlate.
Example sentences for 直径 (3)
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Frequently asked questions about 直径
半径 (bànjìng) refers to the radius, which is half of the diameter. In contrast, 直径 is the full length across the circle.
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