Two equal, acute angles and a third which is not equal to them.
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Isosceles triangle have two equal angles2
Isosceles Triangle
isosceles
An Isosceles Triangle.
The sum of the internal angles of a triangle is 180 degrees. If you know the size of the angles at the base of an isosceles triangle, the final angle can be found by subtracting the size of the two known angles from 180.