# data[].attributes.body
1. It adds up to 360°
2. Defined by multiple vertex

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1. They are opposite each other where two lines cross
2. They intersect

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1. Formed by intersecting lines
2. They are adjacent and supplementary angles

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1. The square of the length of the hypotenuse of a right triangle equals the sum of the squares of the lengths of the other two sides.
2. Hypotenuse = side opposite of the right angle (angle c in the example below)

# data[].attributes.body
1. It is a line segment through a vertex
2. Perpendicular to a line containing the base (opposite side to the vertex)

# data[].attributes.body
1. Divides a segment into two congruent segments
2. It can be used to calculate the point that bisects a line segment defined by the two points by using the midpoint formula

# data[].attributes.body
1. A line, ray or segment
2. It cuts another line segment into two equal parts

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1. They can be used to find the intercept
2. They create 2 congruent angles

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1. An exterior angle is formed when you extend one side of a triangle
2. An exterior angle is equal to the sum of its non-adjacent angles

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1. It is a triangle in which all three sides have the same length
2. All three angles are also congruent to each other and are each 60°

# data[].attributes.body
1. It is a triangle in which all three sides have different lengths
2. Some right triangles can be a scalene triangle when the other two angles or the legs are not congruent

# data[].attributes.body
1. It is a triangle that has two sides of equal length.
2. It is specified as having exactly two sides of equal length, and sometimes as having at least two sides of equal length

# data[].attributes.body
1. y=mx+b
2. It emphasizes the slope and the y-intercept of the line.

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1. y-y₁=m(x-x₁)
2. It emphasizes the slope of the line and a point on the line

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1. Two lines that meet or intersect
2. Come together to form a right angle (90°)

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Congruent Angle Pairs in Parallel lines 

# data[].attributes.subject
Congruent Angle Pairs in Parallel lines 

# data[].attributes.body
1. If two parallel lines are cut by a transversal, the corresponding angles are congruent
2. If two lines are cut by a transversal and the corresponding angles are congruent, the lines are parallel.

# data[].attributes.body
1. Lines that never intersect
2. They are always the same distance apart