What context can I use each word in?
Learn when and how to use these words with these examples!
coplanar
Example
The four corners of a square are coplanar. [coplanar: adjective]
Example
The three vectors are coplanar and lie on the same plane. [coplanar: adjective]
planar
Example
The top of the table is planar and smooth. [planar: adjective]
Example
The triangle is a planar figure with three sides. [planar: adjective]
Good things to know
Which word is more common?
Planar is more commonly used than coplanar in everyday language. Planar is a versatile term that can be used in various contexts, while coplanar is more specific and is mainly used in geometry.
What’s the difference in the tone of formality between coplanar and planar?
Both coplanar and planar are technical terms used in geometry, but coplanar is more formal and specific, while planar is more versatile and can be used in both formal and informal contexts.
