# 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 MATHEMATICSBasic Geometrical Ideas – Chapter 4Choose the correct answer from the options given below:**

- Beam of light from a light house is an example of ——–

A. Line segment

B. Line

C. Ray - How many lines can pass through one given point?

A. Countless

B. One

C. Two - How many lines can pass through two given points?

A. Countless

B. One

C. Two - Which is the least polygon?

A. Pentagon

B. Quadrilateral

C. Triangle - Two lines in a plane are said to be ——— if they do not meet.

A. Parallel

B. Perpendicular

C. Intersecting**Answer the following:** - Define the following terms:

a) Chord

b) Diameter

c) Sector

d) Segment - Write the number of sides in each of the following:

a) Triangle

b) Quadrilateral

c) Pentagon

d) Hexagon - 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. - Say yes or no:

a) Is every diameter of a circle also a chord?

b) Is every chord of a circle also a diameter? - 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.

**ANSWERS:**

- Ray
- Countless
- One
- Triangle
- Parallel
- 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. - a) 3 sides

b) 4 sides

c) 5 sides

d) 6 sides - a) True

b) True

c) True - a) Yes

b) No - a) Two

b) Two