What context can I use each word in?
Learn when and how to use these words with these examples!
coplanar
Example
The four vertices of a square are coplanar. [coplanar: adjective]
Example
The three points on the triangle are coplanar. [coplanar: adjective]
flat
Example
The table top is flat and even. [flat: adjective]
Example
She placed the book on the flat surface of the desk. [flat: noun]
Good things to know
Which word is more common?
Flat is a more common word than coplanar in everyday language, as it has a wider range of applications beyond geometry. Coplanar is a more technical term used primarily in academic or technical contexts.
What’s the difference in the tone of formality between coplanar and flat?
Coplanar is a more formal term than flat, as it is primarily used in technical or academic contexts. Flat is a versatile word that can be used in both formal and informal contexts.
