the isosceles triangle ahs two equal sides and one different side. The base is the one with the different side.
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The base angles of an isosceles triangle are congruent.
The base angles of an isosceles triangle are congruent. The vertex angle of an isosceles triangle is not necessarily congruent to the base angles.
Two sides of an isosceles triangle are equal. The base is the other side.
An isosceles triangle has 2 equal base angles and its height is perpendicular from its apex to the centre of its base
Both have equal sides and equal base angles An isosceles trapezoid is made from an isosceles triangle that's had its top cut off parallel to its base