Pre- Algebra
Terms
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- segment
- two points on a line and all the points between them
- points
- the simplist figure in geometry. representing an exact location
- angle
- a figure formed by two roys with the same endpoint
- acute angle
- angle with measurements less than 90 degrees
- endpoint
- the point at the end of the ray or line segment
- the ends oa a diameter dicide the circle into two ___________.
- semicircles
- chord
- a segment joining two points on the circle
- circle
- the set of all points in a plane at a given distance from a given point O called the center
- How do you name an angle?
-
-by giving its vertex angle or
-by listing letters for points on the two sides with the vertex letter in the middle - parallel lines
- lines 1) in the same plane 2) that do not intersect
- non collinear
- points not on the same line
- complimentary
- angles whose measures have a sum of 90 degrees
- collinear
- two or more points on the same line
- congruent figures
- figures that have the same size and shape
- sides
- the fays making up an angle
- radius
- a segment joining the center of a circle to a point on the circle
- parallel planes
- planes that do not intersect
- a square cm is a square which is _____________ wide and _____________ long
-
one cm
one cm - right angle
-
a 90 degree angle
(the angle formed by perpendicular lines) - supplementary angles
- two angles whos measures have a fum of 90 degrees
- ray
- a part of the line with the endpoint
- plane
- a flat surface extending in all directions
- perpendicular lines
- two angles that intersect to form a 90 degrees
- line
-
1) a figure determined by 2 points
2) extending in both directions - a chord passing through the center is called the __________ of the circle
- diameter
- skew lines
- lines that are not parallel and do not intersect
- midpoint
- the point on a line segment that divides it into two segments of equal length
- vertex
- the common endpointof an angle
- obtuse angle
- angle with measurements greater than 90 degrees