1.  Two flat surfaces intersect to form a(n) _______________.          

2.  A flat surface is a(n) ____________.          

3.  Two lines intersect to form a(n) _______________.          

4.  Two points determine a(n) ____________.          

5.  There are only a finite number of lines that can be drawn through a given point.      

6.  A midpoint ____________ a line segment.          

7.  Which of the following is the point where an angle originates?          

8.  Lines that form right angles are called _________________.          

9.  A pair of angles having a sum equal to a straight angle are supplementary.      

10.  An angle that is less than a straight angle but greater than a right angle is a(n) ____________ angle.          

11.  The term "oblique" can _____________ be used to describe a right angle.        

12.  The size of an angle is determined by ____________________.        

13.  1 /360 of a circle is equal to ________ degree(s).          

14.  The sum of the angles of a triangle is equal to ______________.          

15.  The compliment of a 37 degree angle is ______________.          

16.  A triangle with no two sides equal is __________________.          

17.  A triangle with two sides equal is _________________.          

18.  A right triangle may also be obtuse.      

19.  An angle with 90 degrees is _____________.          

20.  If two lines are perpendicular, they form at the point of intersection _________________.          

21.  If the sum of two angles is an obtuse angle, at least one of the angles must be _______________.          

22.  An obtuse triangle may have only one obtuse angle.      

23.  The distance around a circle is the __________________.          

24.  A geometric statement that is not selfevident but proved by a chain of reasoning is a(n) _______________.          

25.  A statement of beginning facts about lines, angles, figures and other matters to be used in a proof is known as the ________________.        

26.  The definitions, axioms and theorems used to support each statement in a formal two column proof are called the __________________.          

27.  A geometric statement that is easily deduced from a theorem is a corollary.      

28.  The arc that represents one quarter of a circle is called a(n)_______________.          

29.  The converse of a theorem is _____________true.        

30.  Two parallel lines and a transversal can ____________ form a triangle.       
