What is a figure formed by two planes diverging to form a common point?
angle
What is the point where the sides of an angle meet?
Vertex
What are angles that have the same measure?
Congruent angles
What are interior angles that lie on the opposite side of the transversal?
Alternate interior angles
What are two lines that intersect to form right angles?
Perpendicular angles
What are adjacent angles formed by intersecting lines?
Linearpair
What are the angles called when the sum of two angles equal to 90°?
Complimentary angles
What are angles that share a common vertex, side and don't overlap?
Adjacent angles
What is an angle with a measure of 90°?
Rightangle
What are lines in the same plane that never intersect or cross?
Parallel lines
What is a line that intersects two or more lines?
Transversal line
What is an angle whose measure is exactly 180°?
Straight angle
What is an angle whose measure is less than 90°?
Acute angle
What is a line that's measure is 180°?
Straight line
What is an angle whose measure is between 90° and 180°?
Obtuse angle
What are opposite angles formed by the intersection of two lines?
Verticalangle
What is it called when the sum of all the angles equals 180°?
Supplementary angles
What is an isosceles triangle where all angles are equal?
Equiangular
What is a simple closed figure formed by 3 or more line segments?
Polygon
What operation do you use the hypotenuse?
Pythagorean theorem
What is the side opposite the right angle in a right triangle?
Hypotenuse
Four outer angles formed by two outer angles cut by a transversal?
Exterior angles
Angle inside a polygon
Interior angle
Two sides of a right triangle that form the right angle
Legs
What is a line that intersects two or more lines?
Transversal
A figure formed by 3 line segments that intersect only at their end points?
Triangle
What is a polygon that is equilateral and equi angular
Regular polygon
What is a paragraph that explains why a statement or conjecture is true?
Paragraph proof
What is a formal proof that contains statements and reasons organized in two Collumns?
Two Collumn proof
What is a logical argument in which each statement that is made is supported by a statement that is accepted as true?
Proof

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