1 
A parallelogram containing right angles is called a: 
 A. equilateral
 B. rectangle
 C. quadrilateral
 D. square

2 
A line segment whose end points lie on the circle is called a: 
 A. radial segment
 B. are
 C. chord
 D. radius

3 
Angle in a semicircle is of measure : 
 A. 45°
 B. 60°
 C. 90°
 D. 120°

4 
A triangle with two equal sides is called an: 
 A. isosceles triangle
 B. obtuse triangle
 C. scalene triangle
 D. acute triangle

5 
A triangle with no equal side is called: 
 A. isosceles triangle
 B. obtuse triangle
 C. scalene triangle
 D. acute triangle

6 

 A. 72°
 B. 180°
 C. 108°
 D. 90°

7 
Two angel with the common vertex and a common arm between them are called: 
 A. supplementary angle
 B. reflex angles
 C. straight angles
 D. adjacent angles

8 
A father's age 4 times of his son's age. If the age of son is 20 year's, then the age of father is: 

9 
If the sum of two angles is 90° then the angles are called: 
 A. supplement of each other
 B. complement of each other
 C. inverse of each other
 D. reflex of each other

10 
Circles in the same plane with same center and different radii are called: 
 A. concentric circles
 B. semi circles
 C. equal circles
 D. concyclic circles
