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JHHS Geometry 1 Vocab 1
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Gravity
Terms in this set (33)
acute
An angle that measures less than 90 degrees
adjacent angles
2 angles that share a vertex and one ray
angle
The space between two intersecting rays. Often measured in degrees.
bisect
To cut something in half
circle
All points equidistant from a center point
collinear
3 or more points that lie on a shared line
complementary
angles whose measures sum to 90 degrees
degree
A unit of measurement used for angles
diameter
A segment that cuts a circle in half
equidistant
Same distance
equilateral triangle
A triangle with 3 equal sides and angles
hypotenuse
the longest side of a right triangle
Isosceles triangle
A triangle with exactly 2 equal length sides
line
A collection of points that continues infinitely two opposite directions
midpoint
The point in the middle of a segment
noncollinear
3 or more points that do NOT lie on a shared line
obtuse
An angle that measures more than 90 degrees
parallel
2 or more lines that never intersect
parallelogram
a quadrilateral with 2 sets of parallel sides
perpendicular
If two lines intersect and form a 90 degree angle they are said to be ______________.
plane
A 2D surface
point
a dot that represents an exact position or location
polygon
A 2D shape with at least three or more straight sides (no curved sides)
quadrilateral
A four sided 2D shape
radius
A segment whose endpoints are the center of a circle and any other point on the circle
ray
A collection of points that extends infinitely in one direction from an endpoint
Regular polygon
A polygon with all equal sides and equal angles
Right angle
A 90 degree angle
Right triangle
A triangle with a 90 degree angle
segment
A collection of points in a line with 2 endpoints
sum
Another word for "adding 2 or more numbers"
supplementary
Angles whose measures sum to 180 degrees
vertex
The point on an angle where the two rays meet
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