# Basic Geometrical Ideas – Class 6.

Chapter 4 of NCERT/CBSE Class 6 Mathematics is about some basic geometrical ideas. Here in this lesson you can find practice problems for this chapter.

MODEL QUESTIONS FOR CLASS 6 MATHEMATICS
Basic Geometrical Ideas – Chapter 4
Choose the correct answer from the options given below:

1. Beam of light from a light house is an example of ——–
A. Line segment
B. Line
C. Ray
2. How many lines can pass through one given point?
A. Countless
B. One
C. Two
3. How many lines can pass through two given points?
A. Countless
B. One
C. Two
4. Which is the least polygon?
A. Pentagon
C. Triangle
5. Two lines in a plane are said to be ——— if they do not meet.
A. Parallel
B. Perpendicular
C. Intersecting
6. Define the following terms:
a) Chord
b) Diameter
c) Sector
d) Segment
7. Write the number of sides in each of the following:
a) Triangle
c) Pentagon
d) Hexagon
8. Say true or false:
a) Lines which do not meet are said to be parallel.
b) A line segment has two end points.
c) A polygon is a simple closed figure made up entirely of line segments.
9. Say yes or no:
a) Is every diameter of a circle also a chord?
b) Is every chord of a circle also a diameter?
10. Fill in the blanks:
a) A diameter of a circle divides it into ———equal parts.
b) The diameter of a circle divides it into ——– semi circles.

1. Ray
2. Countless
3. One
4. Triangle
5. Parallel
6. a) A chord of a circle is a line segment joining any two points on the circle.
b) A diameter is a chord passing through the centre of the circle.
c) A sector is the region in the interior of a circle enclosed by an arc on one side and a pair of radii on the other two sides.
d) A segment of a circle is a region in the interior of the circle enclosed by an arc and a chord.
7. a) 3 sides
b) 4 sides
c) 5 sides
d) 6 sides
8. a) True
b) True
c) True
9. a) Yes
b) No
10. a) Two
b) Two