In a isosceles triangle, all angles are less than 90 degrees and therefore they are acute angles. Two angles on the opposite side of each other are equal angles.
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An isosceles triangle is a triangle that has two equal sides. The two angels opposite the equal sides are equal angels.
isosceles
All triangles have three angles.
To find the equal angels, base angles, of an isosceles triangle and you know the vertex angle, 180-vertex angle and then divide by two.
The three angles of a triangle is as a result of these three types of a triangle: equilateral, isosceles and scalene.