Question

linda described four triangles as shown below: triangle a: all sides have length 7 cm. triangle b: all angles measure 60°. triangle c: two sides have length 8 cm, and the included angle measures 60°. triangle d: base has length 8 cm, and base angles measure 55°. which triangle is not a unique triangle? triangle a triangle b triangle c triangle d

Answer 1

Triangle b is not a unique triangle because so many triangles can be constructed with all angles measuring 60 degrees.