Answer
acute
Work Step by Step
RECALL:
An acute triangle has 3 interior angles that are less than 90 degrees.
Thus, the missing expression in the given statement is:
acute
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.