When one of them is the smallest and they both look the same
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the two equal angles in the isosceles triangle are the two long sizes. but an isosceles triangle doesn't have to have two long side that are the same length.an isosceles triangle is jus t supposed to have 2 long sides(does not have to be the same length), and one short side.To tell you I am a fifth grader and you can thank me for halping you.i am a girl
Well, honey, that's no ordinary triangle, that's an isosceles triangle. Two sides are the same length, so it's like those twins you can't tell apart. Just make sure to measure those angles too, we don't want any surprises popping up like a bad reality show.
You can't tell. The only thing you know is that two of them are equal, and the third angle is (180 degrees minus the sum of the first two).
If its an isosceles triangle it has 1 line of symmetry but if its an equilateral triangle it has 3 lines of symmetry
One of the angles will be 90 degrees.