1 
Median to the equal sides of an isosceles triangle are: 
 A. congruent
 B. equal
 C. similar
 D. unequal

2 
A parallelogram containing a right angle is called a: 
 A. quadrilateral
 B. square
 C. rectangle
 D. equilateral

3 
The point at which the three anglebisector of a triangle meet is called: 
 A. circumcneter of the triangle
 B. incenter of the triangle
 C. centroid of the triangle
 D. orthocenter of the triangle

4 
The midpoint of the diameter of a circle is called: 
 A. radius
 B. chord
 C. center
 D. tangent

5 
If the centers of two circles lie in either side of the common tangent then it is called: 
 A. external tangent
 B. internal tangent
 C. concyclic tangent
 D. concentric tangent

6 
The altitudes of a triangle are: 
 A. concurrent
 B. collinear
 C. noncollinear
 D. nonconcurrent

7 
A line segment that bisects and angles of the triangle and has its other end on the side opposite to that angle is called: 
 A. altitude of the triangle
 B. incenter of the triangle
 C. angle bisector if the triangle
 D. median of the triangle

8 
If the points of contact of a common tangent to the two circles are on the same side of the line joining their centers then this common tangent is called: 
 A. external tangent
 B. internal tangent
 C. concyclic tangent
 D. concentric tangent

9 
A line segment joining a vertex to the midpoint of the side opposite to the vertex is called: 
 A. altitude to the triangle
 B. side bisector of the triangle
 C. angle bisector if the triangle
 D. median to the triangle

10 
The opposite angles of a parallelogram are: 
 A. congruent
 B. similar
 C. equal
 D. right angle
