## Class 5 - Geometry

### Choose correct answer(s) from given choice

1)How many circles can be drawn with a given center ?
 a. unlimited b. 5 c. 986 d. 1
2)The minimum number of line segments that are need to form a closed figure is
 a. Three b. Two c. Four d. One
3)What is the value of the angle CBD below

 a. 125° b. 132° c. 139° d. 108°
4)The number of diameters that can be drawn in a circle are
 a. Countless b. Two c. One d. Zero
5)What is the angle formed by two perpendicular lines?
 a. 90° b. 76° c. 38° d. 0°
6)Angle ∠R is a right angle, and PS and QS are bisector of angles ∠P and ∠Q respectively. Find the angle ∠PSQ.

 a. 140° b. 145° c. 130° d. 135°

### Fill in the blanks

 7) A diameter divides a circle in   equal parts.
 8) The chord of a circle can be smaller than its diameter (True/False):
 9) A triangle has three angles, which we call the first, second and third angle here. The second angle is twice the first angle. The third angle is 129°. The first angle is °.
 10) The line segment whose endpoints lie on the circumference of a circle, but which is smaller than the diameter of the circle, is called its