PRIME

Platonic

Realms

Interactive

Mathematics

Encyclopedia

# acute

An angle is acute if it is less than a right angle. A triangle is acute if all of its angles are acute.

Citation Info

• [MLA] “acute.” Platonic Realms Interactive Mathematics Encyclopedia. Platonic Realms, 21 Feb 2013. Web. 21 Feb 2013. <http://platonicrealms.com/>
• [APA] acute (21 Feb 2013). Retrieved 21 Feb 2013 from the Platonic Realms Interactive Mathematics Encyclopedia: http://platonicrealms.com/encyclopedia/acute/