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16 terms

Machado - 8th Grade - Math Geometry

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right angle
an angle that measures 90 degrees
vertical angle
the opposite angles where two lines meet
complementary angles
two angles whose sum is a right angle, angles that add up to 90 degrees
supplementary angles
two angles whose sum is 180 degrees
congruent angles
angles with the same measure
intersecting lines
lines that meet at one point, Lines that cross at exactly one point
parallel lines
lines in the same plane that never intersect
transversal
a line that intersects two or more lines.
angle
consists of two rays that begin at the same point
line
a straight path of points that extends without an end in opposite directions
line segment
a part of a line between two endpoints
vertex
the point at the corner of an angle, plane figure or solid figure
acute angle
an angle that measures between 0 and 90 degrees
obtuse angle
an angle that measures between 90 and 180 degrees
straight angle
an angle that measures 180 degrees only (remember 180 degrees only)
adjacent angle
side by side angles that share a common vertex and a ray.