Thursday

October 30, 2014

October 30, 2014

Posted by **Alfa** on Friday, December 17, 2010 at 3:17pm.

- geometry -
**drwls**, Friday, December 17, 2010 at 10:19pmObtuse angles are greater than 90 degrees.

The sum of all angles in a triangle must be 180 degrees. You can't have two of them > 90 and have a total of 180.

Another indirect proof: try drawing one.

- geometry -
**ashana**, Tuesday, December 21, 2010 at 6:04pmyes

**Answer this Question**

**Related Questions**

Geometry - Write an indirect proof that an obtuse triangle does not have a right...

Geometry - Given: obtuse triangle ABC with obtuse angle B. Point D on side AC ...

geometry - obtuse triangle ABC with obtuse angle B. Point D on side AC such that...

Geometry - Writing indirect proofs. Can someone please check for me. I am not ...

geometry - I need to figure out this proof, the figure is two triangles forming ...

geometry - TWO COLUMN TRIANGLE PROOF Given: line AB is parallel to line DE, and ...

Geometry - Given: in triangle ABC, angle B= 120 degrees Prove: angle A does not...

Geometry REPOST - Please try to help me out as much as possible -- this homework...

Geometry - 1. The sides of a triangle have lenghts x, x+4, and 20. Specify those...

math - how do you name a obtuse angle when you are naming an angle just look for...