Which of the following statements is incorrect? A A triangle with three congruent sides is equiangular. B The Isosceles Triangle Theorem can be applied to equilateral triangles. C The measure of each interior angle of an equilateral triangle is 120o. D A triangle with three congruent angles is equilateral.

Which of the following statements is incorrect? A A triangle with three congruent sides is equiangular. B The Isosceles Triangle Theorem can be applied to equilateral triangles. C The measure of each interior angle of an equilateral triangle is 120o. D A triangle with three congruent angles is equilateral.

Elementary Geometry For College Students, 7e

7th Edition

ISBN:9781337614085

Author:Alexander, Daniel C.; Koeberlein, Geralyn M.

Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.

Chapter2: Parallel Lines

Section2.2: Indirect Proof

Problem 11E: Which of the following statements would you prove by the indirect method? a In triangle ABC, if...

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A	A triangle with three congruent sides is equiangular.
B	The Isosceles Triangle Theorem can be applied to equilateral triangles.
C	The measure of each interior angle of an equilateral triangle is 120^o.
D	A triangle with three congruent angles is equilateral.