Question with reasoning (Geometry) (1 Viewer)

[pikachu975]

Just with this - Angles opposite equal sides are equal - do you have to say the triangle is isosceles first or can you jump straight to this? Thanks!

 

[Drongoski]

Just with this - Angles opposite equal sides are equal - do you have to say the triangle is isosceles first or can you jump straight to this? Thanks!

What are you trying to say? Makes no sense. 2 equal sides of a triangle?

 

[fluffchuck]

Yes, you have to state the triangle is isosceles as reasoning

 

[pikachu975]

What are you trying to say? Makes no sense. 2 equal sides of a triangle?

Like you have 2 equal sides and you want to say that the base angles are equal. Is this allowed:

"Angles opposite equal sides are equal"

Or would you have to do this:

"Triangle ABC is isosceles (2 sides are equal)"
"Angles opposite equal sides are equal"

I'm saying can you skip to the second line or do you have to say both.

 

[Drongoski]

For an isosceles triangle, we usually just say: the base angles are equal. So the 2 equal angles are simply referred to as the "base angles".