Isosceles Triangle. An isosceles triangle is a triangle with (at least) two equal sides. In the figure above, the two equal sides have length and the remaining side has length . This property is equivalent to two angles of the triangle being equal.
Answer: A triangle with two equal sides and the two opposite sides are also equal!
Step-by-step explanation: if you need a better explanation go to math is fun and it should give you a better explanation.
