Math 2 Flashcards
A angle with a measure greater than zero and less than 90
Acute angle
Angles that have the same vertex share a common side and do not overlap
Adjacent angles
Two angles are complementary if the sum of their measures is 90°
Complementary angles
Having the same measure
Congruent
A triangle having three congruent sides
Equilateral triangle
A triangle having at least two congruent sides
Isosceles triangle
Any angle that measures greater than 90° but less than 180°
Obtuse angle
A triangle having one obtuse angle
Obtuse triangle
Any angle that measures exactly 90°
Right angle
A triangle having no congruent sides
Scalene triangle
an angle that measures exactly 180°
Straight angle
Two angles are supplementary if the sum of their measures is 180°
Supplementary angle
A figure with three sides and three angles
Triangle
A vertex of an angle is the common endpoint of the rays forming the angle
Vertex
Opposite angles formed by the intersection of two lines vertical angles are congruent
Vertical angles