Which set of angles shows an obtuse triangle? a) 71, 36, 73 b) 73, 91, 16 c) 90, 64, 26 d) 45, 82, 53

6 years agoan obtuse triangle is a triangle that has one angle that is larger than 90 degrees

6 years agobut less than 180 right ?

6 years agoexample: |dw:1345226852284:dw|

6 years agoyes, also less than 180

6 years agoohh okay, so I would add them & they would have to be greater than 90 but less than 180?

6 years agono, just a single angle

6 years agoif any one angle is greater than 90 but less than 180, then it's part of an obtuse triangle

6 years agoyou're thinking of adding up the angles to get 180 (which verifies that you have a triangle in general)

6 years agothey all equal 180 though

6 years agoso they all form triangles, but which ones are obtuse triangles?

6 years agod?

6 years agod) 45, 82, 53 all angles here are less than 90, so this is an acute triangle

6 years agoa? @jim_thompson5910

6 years ago71 is less than 90 36 is less than 90 73 is less than 90 so all 3 angles are less than 90, so it is an acute triangle

6 years agoso choice A is out

6 years agoso its B?

6 years agoyes, that second angle of 91 is larger than 90 degrees

6 years agoso it's an obtuse triangle

6 years agothank you very much

6 years agoyou're welcome

6 years ago