The exterior angle of an equilateral triangle is 180-60=120, and it’s obtuse. Isosceles triangles has two equal sides, and equilateral has all three sides equal. It means that all equilateral triangles are also isosceles, but not conversely. Equlateral triangles have all sides same length, so each side is perimeter divided by 3. Isosceles Triangle: A triangle in which any two sides are equal is an Isosceles triangle.
\begin A) True B) True C) False D) False E) True Base angles are always acute. Lines are well lines and do not have any endpoints. E) True The exterior angle of an equilateral triangle is 180-60=120, and it’s obtuse. Threes a Triangle An isosceles obtuse triangle The acute angles of a right triangle are complementary. D) False Because we dont know the length of base.
ARE ALL ISOSCELES TRIANGLES SIMILAR QUIZLET UPGRADE
C) False Isosceles triangles has two equal sides, and equilateral has all three sides equal. It means that all equilateral triangles are also isosceles, but not conversely. if two sides of one triangle are proportional to two sides of another triangle and their included angles are congruent, then the triangles are similar Upgrade to remove ads Only 35.
B) True Equlateral triangles have all sides same length, so each side is perimeter divided by 3.
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