Geometry Ch. 1 Terms flashcards

Terms	Definitions
metric	centimeter is an example of length
line	lowercase script letter
collinear	Points on the same line
line segment	it has two endpoints and can be measured
supplementary	Two angles whose measures have a sum of 180°
customary	inch is an example of length
ray	one endpoint and extends indefinitely in one direction
obtuse	angle that measures between 90° and 180°
coplanar	Points on the same plane
plane	represented by a capital script letter
vertical	Two nonadjacent angles formed by two intersecting lines
vertex	common endpoint of an angle
perpendicular	lines that form right angles
complementary	Two angles whose measures have a sum of 90°
acute	angle that measures between 0° and 90°
linear pair	two adjacent angles whose opposite sides form a line
right	angle that measures 90°
bisect	cuts into two equal pieces
perpendicular	coplanar lines whose two slopes product is -1
point	represented by a capital letter
parallel	coplanar lines that do not intersect
slope-intercept form	y=mx + b
point-slope form	y -y1 = m(x - x1)

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