'Angles bac' presentation slideshows

The two congruent sides of an isosceles triangle.

The two congruent sides of an isosceles triangle. The angle made by the intersection of the legs of an isosceles triangle. The non-congruent side of an isosceles triangle. (Base does NOT mean it's got to be at the bottom). The angles formed by the base and legs of an isosceles triangle. ?C.

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