An equilateral triangle is also equiangular.


1.     Triangle ABC is equilateral.                           1.     Given.

2.     AB = BC                                                          2.     Definition of equilateral.

3.      A = C                                                          3.     If two sides of a triangle are equal,

                                                                                          then their opposite angles are                                                                                         
                                                                                          equal.

4.     BC = CA                                                           4.     Definition of equilateral.

5.     /  B = /  A                                                          5.     If two sides of a triangle are equal,

                                                                                         then their opposite angles are equal.

6.     CA = AB                                                          6.     Definition of equilateral.

7.      C = B                                                          7.     If two sides of a triangle are equal,

                                                                                         then their opposite angles are equal.

8.     Triangle ABC is equiangular.                          8.     Definition of equiangular.


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