Select all that apply.

In an isosceles triangle, one angle measures 20°. What are the measures of the other two angles?

80° and 80°
90° and 90°
20° and 140°
20° and 60°

Question

Select all that apply.

In an isosceles triangle, one angle measures 20°. What are the measures of the other two angles?

80° and 80°
90° and 90°
20° and 140°
20° and 60°

anonymous · Answer

I mean first and 3rd one.

mathstudent55 · Answer

What do you know about isosceles triangles?

mathstudent55 · Answer

@silca
Why not the first one?

anonymous · Answer

@mathstudent55 I said the first and the third one. they both seem to work out.

mathstudent55 · Answer

You said the first one.
Then you changed your mind and said the third one and erased the first one.

I agree with you in the first place, the first and third choices are correct.

anonymous · Answer

Oh no, I said only the 1st one then I realised the 3rd one also works so I deleted my comment and I wrote I mean the first and 3rd one.

mathstudent55 · Answer

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