An isosceles triangle has 2 sides the same length, and two angles the same. The other side has a different length. (If all three are the same, it is an equilateral triangle.)
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An isosceles triangle has two same sides and one different side.
isosceles triangle
It probably is a isosceles triangle
Are isosceles triangle sometimes an equilateral triangle
An obtuse triangle is not necessarily isosceles, but it can be.