Pronunciation: /əˈkjut ˈtraɪˌæŋ.gəl/ Explain
Click on the blue points and drag them to change the figure.|
What can you say about the triangle when it is an acute triangle?
|Manipulative 1 - Acute Triangle Created with GeoGebra.||
An acute triangle is a
triangle where all of the
An acute angle is an angle with a measure of less than
90° (π/2 radians). Since all triangles that
do not have a
are scalene triangles,
all acute triangles are also acute scalene triangles.
- McAdams, David E.. All Math Words Dictionary, acute triangle. 2nd Classroom edition 20150108-4799968. pg 10. Life is a Story Problem LLC. January 8, 2015. Buy the book
- Casey, John, LL.D., F.R.S.. The First Six Books of the Elements of Euclid. pg 8. Translated by Casey, John, LL.D. F.R.S.. www.archive.org. Hodges, Figgis & Co., . 1890. Last Accessed 6/12/2018. http://www.archive.org/stream/firstsixbooksofe00caseuoft#page/8/mode/1up/search/acute. Buy the book
- Le Clerc, Sébastien; Nattes, John Claude; . Nattes's practical geometry, or, Introduction to perspective. pg 11. Translated by Pyne, W. H.. www.archive.org. W. Miller. 1890. Last Accessed 6/12/2018. http://www.archive.org/stream/nattesspractical00leclrich#page/11/mode/1up/search/acute. Buy the book
Cite this article as:
McAdams, David E. Acute Triangle. 4/11/2019. All Math Words Encyclopedia. Life is a Story Problem LLC. http://www.allmathwords.org/en/a/acutetriangle.html.
4/11/2019: Changed equations and expressions to new format. (McAdams, David E.)
12/21/2018: Reviewed and corrected IPA pronunication. (McAdams, David E.)
12/16/2018: Removed extraneous image. (McAdams, David E.)
6/18/2018: Changed image of acute triangle to manipulative. (McAdams, David E.)
6/12/2018: Removed broken links, updated license, implemented new markup. (McAdams, David E.)
5/5/2011: Initial version. (McAdams, David E.)