Question

Proofing help

Answer 1

In a geometry class, the students were asked to prove the theorem below by contradiction:

Theorem: A triangle has at the most one obtuse angle.

Heather begins the proof with an assumption. Which statement will she most likely use as an assumption?

Let two angles of a triangle be obtuse.

Let each angle of a triangle be acute.

Let only one angle of a triangle be obtuse.

Let two angles of a triangle be right.

Answer 2

Let only one angle of a triangle be obtuse.

Answer 3

/ C.

Answer 4

For B all of the angles would have to be acute...which automatically isnt a theorem...so we can cancel that out.

Answer 5

It's not possible for a triangle to have more than one obtuse angle...or it wouldnt be a triangle.

Answer 6

Thanks man!

Answer 7

The answer is C Let only one angle of a triangle be obtuse. not sure if you got that

Answer 8

Elimination budday

Answer 9

Im very bad at explaining things but I try.

Answer 10

That's pretty much how a survive highschool XD