###
Hypotenuse

longest side in a right triangle; opposite the right angle

###
Scalene Triangle

triangle with no sides equal in length

###
Line Segment

part of a line with two endpoints

###
Vertex

point where two rays meet

###
Perpendicular Lines

lines that intersect to form four right angles

###
Quadrilateral

4-sided polygon

###
Equilateral Triangle

triangle with all sides equal in length

###
Diagonal

connects two non-consecutive vertices

###
Line

a collection of points extending forever in opposite directions

###
Point

an exact location in space

###
Ray

contains an endpoint and extends forever in the opposite direction

###
Parallel Lines

two lines that never intersect and are always the same distance apart

###
Polygon

a closed figure whose sides are line segments

###
Right Triangle

a triangle that contains a right angle

###
Isosceles Triangle

a triangle with two sides equal in length

###
Legs

the two sides of a right triangle that meet to form the right angle

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