• POINT - any given spot, points are named with capitol letters; Point A
• LINE - a straight line that never ends, named with lower case Script letters
• PLANE - a flat surface that reaches out forever, named by any three points that are on that same plane; plane ABC
• CONGRUENT - two lines or geometric figures that are exactly the same
• LINE SEGMENT - an area of a line defined by 2 points on that line, they are named for those 2 points; segment AB
• MIDPOINT - a point that is in the exact middle of a line segment, this point divides the segment into equal halves
• ENDPOINT - a point on the end of a line segment or ray
• RAY - a line extending from one endpoint and continues forever, named by listing the endpoint and then another point on the ray; ray AB
• ANGLE - an angle is made by two rays extending from the same endpoint, named by listing a point on one ray, the endpoint, and the a point on the other ray; angle ABC
• DEGREE - type of measurement used to show amount of opening between the two rays of an angle
• ACUTE ANGLE - angle measures less than 90 degrees
• RIGHT ANGLE - an angle measuring exactly 90 degrees
• OBTUSE ANGLE - an angle measuring greater than 90 degrees
• BISECT - when an line or point divides a geometric figure into exact halves.

For the following questions, write down the answers on your own sheet of paper, then check your answers on the answer page.

1) Which example best defines a point?

(a) grain of sand (b) house (c) fence (d) road

2) Which object best defines a line?

(a) quarter (b) an ocean (c) aircraft runway (d) taught kite string

3) Which object best defines a line segment?

(a) lamp (b) yardstick (c) toilet (d) marshmallow

4) Which object best defines a plane?

(a) ocean (b) mountains (c) table (d) baseball

5) Which angle is smaller than 90 degrees?

(a) right (b) obtuse (c) acute

6) Which angle is greater than 90 degrees?

(a) obtuse (b) right (c) acute

7) Which angle is exactly 90 degrees?

(a) right (b) obtuse (c) acute

8) Which definition best describes a ray?

(a) a point on a line that bisects it

(b) a point that has two segements connected to it

(c) a line that starts from a point and extends out only in one direction

9) Which definition best describes and angle?

(a) a point that has two rays starting from it

(b) a point on a line that bisects it

(c) two figures that are exactly the same

10) True or false, does a midpoint bisect a line?

11) Which set of figures are congruent?

(a)(b)