What context can I use each word in?
Learn when and how to use these words with these examples!
subtend
Example
The angle subtended by the two lines is 90 degrees. [subtended: past participle]
Example
The angle subtended by the chord and tangent line is equal to the angle formed by the intercepted arc. [subtend: verb]
extend
Example
We need to extend the deadline for the project. [extend: verb]
Example
The company plans to extend its operations to other countries. [extend: verb]
Example
The bridge extends over the river for several miles. [extends: present tense]
Good things to know
Which word is more common?
Extend is a more common word than subtend in everyday language. Extend is a versatile word that can be used in various contexts, while subtend is a technical term used mainly in mathematical and scientific contexts.
What’s the difference in the tone of formality between subtend and extend?
Subtend is a technical term that is typically used in formal or academic contexts, while extend can be used in both formal and informal contexts.