Question

match the vocabulary word to the definition.

1. the point halfway between the endpoints of a segment.
2. defined by 3 noncollinear points.
3. starts at a point and extends endlessly in one direction.
4. the common endpoint of an angle.
5. angle that measures less than 90°.
6. angle that measures between 90° and 180°.
7. points on the same line.
8. a segment, line, or plane that intersects a segment exactly in the middle.
9. points not on the same line.
10. start at a point and extend endlessly in opposite directions.

vocabulary words
a. plane
b. ray
c. collinear
d. noncollinear
e. opposite rays
f. vertex
g. acute
h. obtuse
i. midpoint
j. segment bisector

Explanation:

1. The mid - point is the point halfway between endpoints of a segment.
2. A plane is defined by 3 non - collinear points.
3. A ray starts at a point and extends endlessly in one direction.
4. The vertex is the common endpoint of an angle.
5. An acute angle measures less than 90°.
6. An obtuse angle measures between 90° and 180°.
7. Collinear points are on the same line.
8. A segment bisector is a segment, line, or plane that intersects a segment exactly in the middle.
9. Non - collinear points are not on the same line.
10. Opposite rays start at a point and extend endlessly in opposite directions.

Answer:

1. i. Midpoint
2. a. Plane
3. b. Ray
4. f. Vertex
5. g. Acute
6. h. Obtuse
7. c. Collinear
8. j. Segment Bisector
9. d. Noncollinear
10. e. Opposite Rays